Monthly Recurring Revenue
This article introduces the concept of MRR, the three types of MRR that Zuora supports, the methods to access MRR, and the calculation logic for each type of MRR. It also gives an introduction to the concept of Contracted MRR. For Order MRR, see Key Metrics for Orders.
Monthly recurring revenue (MRR) is a key metric for subscription businesses. It represents the amount of predictable revenue that a company can expect to receive on a monthly basis. You can calculate MRR for a tenant, entity, account, subscription, charge, or any number of other dimensions stored in Zuora.
MRR calculates recurring fees normalized to a monthly value and does not consider onetime or usage fees. Since MRR is a normalized monthly fee and a charge pricing can change at any time within a month, you can tie the MRR value to a specific date.
Types of MRR
For regular charges, Zuora supports Gross MRR, Discount MRR, and Net MRR:
 Gross MRR is the MRR exclusive of any discounts applicable.
 Discount MRR equals the total MRR of all the discount charges that are applied to the regular charge.
 Net MRR is the MRR inclusive of all the discounts applicable, including the fixedamount discounts and percentage discounts.
For discount charges, Zuora supports Discount MRR only. It is the MRR normalized from the discount value that can be allocated to a particular regular charge from the discount charge.
General Rules for MRR Calculation
The following formula applies to the MRR calculation:
Net MRR = Gross MRR  Discount MRR
The calculation of Gross MRR is dependent on the following factors of a regular charge:
 Charge price
 Charge quantity
 Charge effective date, including effective start date and effective end date
To determine whether a discount charge can be applied to a regular charge, two factors are contributing:
 Whether the effective time range of the discount charge has an overlap with that of the regular charge.
 Whether there is any balance in the discount charge so that some amount of discount (if not all) can be applied to the regular charge. For example, if a discount charge is applicable to several regular charges.
Therefore, the calculation of Discount MRR is impacted by many factors including those in the following, as well as how many discount charges are going to be applied to a particular regular charge. See Processing Discounts in MRR Metrics for how discounts are processed in the MRR calculation.
 Discount charge fields, including:
 Discount charge price
 Discount charge effective date, including effective start date and effective end date
 Discount class
 Discount charge model
 Discount level
 Discount charge number
 Discount charge type
 Regular charge fields, including:
 Regular charge price
 Regular charge quantity
 Regular charge effective date, including effective start date and effective end date
 Regular charge type
 Regular charge number
 Regular charge segment ID
For the prepayment charge supported in the Prepaid with Drawdown feature, the gross MRR is an average value across the duration of the whole charge segment, regardless of the validity period setup for the prepayment charge.
Accessing MRR
The following table shows the locations to access the various types of MRRs:
Interface  Gross MRR  Discount MRR  Net MRR 

Subscription Detail Page  Available for regular charges  Unavailable  Unavailable 
Account Detail Page  Displayed as "Today's MRR" key metrics  Unavailable  Unavailable 
Zuora Reporting  Available in the "Total MRR" standard report or via the Rate Plan Charge data source  Unavailable  Unavailable 
Data Source Export 
Available via the Rate Plan Charge data source 
Unavailable  Unavailable 
Aqua API  Available via the Rate Plan Charge data source  Unavailable  Unavailable 
Zuora Analytics  Available as the "Gross MRR" metric  Available as the "Discount MRR" metric  Available as the "Net MRR" metric 
Data Query  Available in the ChargeMetrics table 

Available in the ChargeMetrics table 
REST API  Use Get subscriptions by key or Get subscriptions by account with the chargedetail request parameter. 
Unavailable  Unavailable 
SOAP API  Use the query() call on the RatePlanCharge object.  Unavailable  Unavailable 
Processing Discounts in MRR Metrics
This section introduces how discounts are processed in the MRR calculation and why it is different from that in Invoicing.
Zuora applies discounts as charges. Two types of discount charges are supported: fixedamount discounts and percentage discounts. A discount charge can be restricted to a regular rate plan charge, a rate plan, a subscription, or an account. See more information in Discount Charge Models.
The Orders feature does not support account level discounts.
The sequence of applying multiple discount charges to one regular charge
In the MRR calculation, if more than one discount charge can be applied to a regular charge, the sequence below is used to decide which discount goes first:
 Order by discount classes:
The discount charge with the discount class in a higher application order is applied before those with discount classes in lower application orders. The discount charge without any discount class is applied in the end.
 If the discounts have no discount class or have the same discount class, order them by discount charge model types:
DiscountPercentage > DiscountFixed Amount
 If the discounts have the same model type, for example, all the discounts have the DiscountPercentage or DiscountFixed Amount type, order them by discount levels:
Rate Plan Level > Subscription Level > Account Level
 If the discounts have the same model type and discount level, for example, all the discounts have the DiscountPercentage type and can be applied to the Rate Plan Level, order them by discount charge number:
The smallest charge number is applied to the subscription charge.
See the example in Applying both a fixedamount and percentage discount charges to one regular charge. See more information in Processing Discount Charges.
The sequence of applying a fixedamount discount charge to multiple regular charges
In the MRR calculation, if a fixedamount discount charge can be applied to more than one regular charge, the sequence below is applied to decide which charge to apply first.
 Order by charge types: Recurring regular charges get the discount first; Onetime regular charges get the discount next; Usage regular charges are not supported in the MRR calculation.
 If the regular charges have the same charge type, order them by the charge number from the lowest to the highest.
 If a regular charge has more than one charge segments to apply the discounts, order them by start dates:
The discount is applied to the earliest charge segment first, then the second earliest, and so on.
See the examples below:
Differences in applying discounts between MRR and Invoicing
 MRR calculation aligns its calculation period with the calendar month rather than the Billing Period as in Invoicing. Also, the Billing Cycle Day of a subscription is not taken into account when calculating MRR.
 MRR is applicable to recurring charges only, and TCV is applicable to both onetime and recurring charges. If a subscription includes any usage charge, the metrics calculation will ignore the usage charge and calculate metrics only for the onetime and recurring charges.
 The purpose of MRR is revenue prediction and contract value measuring. Therefore, to enable MRR calculation, when applying fixedamount discounts to regular charges, the discount must be distributed evenly and applied as a recurring charge. The Invoicing allocates fixedamount discounts differently because of a different business intention, which is to collect a payment, so it takes an eager allocation model. See the following example:
Suppose you are going to apply a $500 quarterly discount charge to a monthly recurring regular charge. During a Bill Run, $300 will be applied to the first month, $200 to the second month and $0 to the third month. In the MRR calculation, the discount is applied as a monthly recurring discount charge of $166.667/month.
The following sections describe the calculation of Gross MRR, Discount MRR, and Net MRR in both the charge and subscription levels.
Chargelevel Gross MRR
The lowest level of granularity for Gross MRR in Zuora is a Rate Plan Charge segment (referred to as a "charge segment"). A regular Rate Plan Charge (referred to as a "charge") can be segmented to several charge segments with a different price for each charge segment, as a result of amendments or order actions. The chargelevel Gross MRR for a regular charge (on a specific date) equals the Gross MRR of the corresponding charge segment.
You can calculate the charge segment Gross MRR based on the billing period:
 Weekly
 Monthly
 Subscription term
Weekly Based Billing Period
Follow the formula below to calculate Gross MRR values for weekly based billing period:
Gross MRR = (Price / Number_of_Days_of_Base_Price) * 30
For example 1: Suppose your customer subscribes to your recurring charge:
 Charge Model: Flat Fee Pricing
 Price: $140
 List Price Base: Week
Gross MRR = ($140/7) * 30 = 600
For example 2: Suppose your customer subscribes to your recurring charge:
 Charge Model: Flat Fee Pricing
 Price: $140
 List Price Base: Per Billing Period (2 Weeks)
Gross MRR = ($140/14) * 30 = 300
Monthly Based Billing Period
Follow the formula below to calculate Gross MRR values for monthly based billing period:
Gross MRR = Price / Number_of_Months_in_a_Billing_Period
Example 1: Suppose your customer subscribes to your recurring charge:
 Charge Model: Flat Fee Pricing
 Price: $300
 List Price Base: Per Billing Period
 Billing Period: Month
Gross MRR = 300 / 1 = 300
Example 2: Suppose your customer subscribes to your recurring charge:
 Charge Model: Flat Fee Pricing
 Price: $300
 List Price Base: Per Billing Period
 Billing Period: Quarter
Gross MRR = 300 /3 = 100
Fullterm Based Billing Period
If you select Subscription Term as the billing period, Gross MRR of recurring charge is calculated based on the list price base:
 List Price Based on Week: Same as Weekly Based Billing Period
 List Price Based on Month: Same as Monthly Based Billing Period
Subscriptionlevel Gross MRR
The Gross MRR of a subscription (on a specific date) is the sum of the Gross MRRs of the regular recurring charges in that subscription (on that date).
Example:
Suppose your customer had a termed subscription with two monthly recurring charges:
 Charge 1 of $10/month was amended on 3/1/2019, with the price changed to $15/month and then amended on 7/1/2019, with the price changed to $20/month.
 Charge 2 of $20/month was amended on 6/1/2019, with the price changed to $10/month and then removed on 10/1/2019.
The Gross MRR of Charge 1, Charge 2, and the subscription are shown in the diagram below:
Chargelevel Discount MRR
This section introduces both the "Discount MRR for discount charges" and "Discount MRR for regular charges".
 Discount MRR for discount charges:
A discount charge is always applied to a specific charge segment of a regular charge. The chargelevel Discount MRR of a discount charge is normalized from the discount amount that can be allocated on the charge segment from the discount charge. The discount amount that can be allocated is dependent on the factors described in General Rules for MRR Calculation.
 Discount MRR for regular charges:
Multiple discount charges can be applied to a single regular charge. This means that the chargelevel Discount MRR of a regular charge equals the sum of all the chargelevel Discount MRR for discount charges that are applied to the charge segment (of the regular charge).
The following example demonstrates the discount amount allocation to a charge segment in a typical scenario: two discounts are applied to a charge segment, a percentage discount charge is applied first, and then a fixedamount discount charge is applied. See the example in Applying both a fixedamount and percentage discount charges to one regular charge that demonstrates the discount amount allocation to a charge segment in another typical scenario: two discounts are applied to a charge segment, a fixedamount discount charge is applied first, and then a percentage discount charge is applied.
Example:
Suppose your customer had a oneyear termed subscription from 1/1/2019 to 1/1/2020 with one regular charge and two discount charges as below.
 Charge 1: a recurring regular charge of $10/month, and was amended on 7/1/2019 with the price changed to $20/month.
 Charge 2: a recurring fixedamount discount charge of $5/month with an effective period from 3/1/2019 to 7/1/2019.
 Charge 3: a recurring percentage discount charge of 20% with an effective period from 5/1/2019 to 9/1/2019.
In this example, Charge 1 is segmented by an amendment into two charge segments. The two charge segments are then further segmented by the two discount charges into several charge periods in which the net pricing of the regular charge remains constant. See more information about charge segments and charge periods in Chargelevel Net MRR.
The MRR of the three charges are shown in the diagram below:
The discounts are applied as in the following manner:
 The fixedamount discount is applied to Charge Segment 1 of Charge 1.
 The percentage discount is applied to both charge segments of Charge 1.
 During Charge Period 3, both discount charges are applied to Charge 1. The percentage discount is applied first. See The sequence of applying multiple discount charges to one regular charge.
You can get the following sets of Discount MRRs for Charge 2 and Charge 3, as in the table below.
Discount Charge  Target Charge Segment (of the Regular Charge) 
Target Charge Period (of the Regular Charge) 
Start Date  End Date  Discount MRR for Discount Charge 

Charge 2  Charge Segment 1 of Charge 1  Charge Period 2  3/1/2019  5/1/2019  5 
Charge Period 3  5/1/2019  7/1/2019  5  
Charge 3  Charge Segment 1 of Charge 1  Charge Period 3  5/1/2019  7/1/2019  10*20%=2 
Charge Segment 2 of Charge 1  Charge Period 1  7/1/2019  9/1/2019  20*20%=4 
You can get the following sets of Gross MRR, Discount MRR, and Net MRR for Charge 1, as in the table below. During Charge Period 3, the Discount MRR for Charge 1 is the sum of the Discount MRRs for Charge 2 and Charge 3.
Regular Charge  Charge Segment  Charge Period  Charge Period Start Date  Charge Period End Date  Discount MRR for Regular Charge  Gross MRR for Regular Charge  Net MRR for Regular Charge 

Charge 1  Charge Segment 1  Charge Period 1  1/1/2019  3/1/2019  n/a  10  10 
Charge Period 2  3/1/2019  5/1/2019  5  10  105=5  
Charge Period 3  5/1/2019  7/1/2019  5+2=7  10  107=3  
Charge Segment 2  Charge Period 1  7/1/2019  9/1/2019  4  20  204=16  
Charge Period 2  9/1/2019  1/1/2020  n/a  20  20 
Chargelevel Net MRR
The lowest level of granularity for Net MRR in Zuora is determined by the alignment of effective time range between a regular charge and a discount charge that is applicable to the regular charge.
 When the effective time ranges align, the lowest level of granularity for Net MRR is a charge segment. See Chargelevel Net MRR Calculation Based on Charge Segments.
 When the effective time ranges do not align, the lowest level of granularity for Net MRR is a charge period (part of a charge segment). See Chargelevel Net MRR Calculation Based on Charge Periods. The charge period is a concept used for calculating Net MRR. You cannot get an actual object of it as for a charge segment.
See General Rules for MRR Calculation and Processing Discounts in MRR Metrics for the factors and rules that determine whether a discount charge is applicable to a regular charge.
See Subscriptionlevel Net MRR for more examples of the MRR calculation for a regular charge in different scenarios.
Chargelevel Net MRR Calculation Based on Charge Segments
When the effective time range of a discount charge aligns with that of a regular charge, the regular recurring charge can be segmented to several charge segments as a result of amendments or order actions. The net pricing of a charge segment remains constant. Therefore, the chargelevel Net MRR on a specific date equals the Net MRR of the corresponding charge segment.
The Net MRR for a charge segment can be calculated by:
Net MRR of Charge Segment = Gross MRR of Charge Segment  Discount MRR of Charge Segment
Example:
A percentage discount charge of 20% is applied to a regular monthly charge. The effective ranges of both charges are 2019/1/1  2020/1/1. The price of the regular charge is $300/month for the first half year. It is then amended to $500/month for the second half year.
The following diagram shows the Net MRR calculation for each charge segment of the regular charge:
In this example, the regular charge has two charge segments. The Net MRR of each charge segment is:
 Charge Segment 1 (2019/1/12019/7/1): 300  300 * 20% = 240
 Charge Segment 2 (2019/7/12019/9/1): 500  500 * 20% = 400
Chargelevel Net MRR Calculation Based on Charge Periods
When the effective range of a discount charge does not align with that of a regular charge, a charge segment of the regular charge can be further segmented to several charge periods as determined by the effective dates of discounts. In such a charge period, the net pricing of the regular charge remains constant. The chargelevel Net MRR on a specific date equals the Net MRR of the corresponding charge period.
The Net MRR of a charge period can be calculated by:
Net MRR of Charge Period = Gross MRR of Charge Period  Discount MRR of Charge Period
Example:
A percentage discount charge of 20% is applied to a regular monthly charge for the last quarter of a oneyear term (2019/1/12020/1/1). The price of the regular monthly charge is $300/month for the first half year. It is then amended to $500/month for the second half year.
The following diagram shows the Net MRR calculation for each charge segment and each charge period of the regular charge:
In this example, the regular charge has two charge segments. The second charge segment is segmented by the discount charge into two charge periods.
The Net MRR for each charge segment or each charge period is:
 Charge Segment 1: 300  300 * 20% = 240
 Charge Period 1: 500  500 * 20% = 400
 Charge Period 2: 500
The following diagram shows how a charge segment of a regular charge can be segmented by a discount charge into several charge periods.
Subscriptionlevel Net MRR
This section has several examples to show the calculation process of subscriptionlevel Net MRR, as follows:
 How discounts are allocated to regular charges in different scenarios.
 And then how chargelevel MRRs (Gross, Discount, and Net MRRs) are calculated for regular charges in these scenarios.
 Finally how chargelevel MRRs are added up to get the subscriptionlevel MRR.
The various scenarios include:
 One discount charge applied to multiple regular charges:
 Multiple discounts applied to one single regular charge:
Applying an account level fixedamount discount charge to multiple subscriptions
This example demonstrates how an account level fixedamount discount charge is allocated on the four regular charges that belong to the two subscriptions of the same customer account. You can see the following analysis in this example:
 The discount applying sequence
 The discount amount allocation
 The chargelevel MRR calculation
 The subscriptionlevel MRR calculation
Example:
Suppose a new customer account (as the subscription owner) has two subscriptions:
 Subscription 1 is a half year termed subscription with a rate plan containing two regular charges triggered on 1/1/2019.
 Charge 1 (R1) is a regular monthly charge of $300/month.
 Charge 2 (O1) is a regular onetime charge of a $100 flat fee.
 Subscription 2 has the same product rate plan (containing R2 and O2), but the effective term is from 1/16/2019 to 7/1/2019.
 An accountlevel discount charge of $1500/quarter is added to Subscription 1 for the first quarter.
The discounting logic and the MRR calculation for this example can be illustrated by the diagram below:
The discount applying sequence:
To apply an accountlevel discount, the regular charges in all the subscriptions of the target subscription owner account is sorted to the following sequence. See The sequence of applying a fixedamount discount charge to multiple regular charges.
 R1
 R2
 O1
 O2
The discount amount allocation:
When applying a discount to a regular recurring charge, the discount must be evenly distributed and applied as a monthly recurring charge:
 When applying a discount on R1, the $1500/q recurring quarterly discount charge is viewed as a $500/m monthly recurring discount charge. The price of R1 in the charge period from 1/1 to 4/1 is $300/m, so at maximum, a recurring discount charge of $300/m can be applied to R1. The discount balance as a recurring monthly charge is $200/m (500300) for the charge period from 1/1 to 4/1.
 The discount charge is then applied as a 200/m recurring discount charge on R2. As the price of R2 in the charge period from 1/16 to 4/1 is $300/m, the discount balance as a recurring charge is 0 in the charge period from 1/16 to 4/1 and $200/m in the charge period from 1/1 to 1/16.
To apply a discount to a onetime charge, the discount is applied as a total amount for the discount charge’s effective time range.
 To apply the discount on O1, the discount balance as a total amount for the quarterly discount charge is 200  200*16/31=$96.744. As the price of O1 is $100, after the discount is applied to O1, the discount balance is 0.
 As no discount balance is available from 1/1 to 4/1, no discount can be applied to O2.
The chargelevel MRR calculation:
The Gross MRR, Discount, and Net MRR of each charge or charge period are calculated as in the table below. O1 and O2 are onetime charges and are not counted in the MRR calculation.
Charge 
Charge Period 
Gross MRR 
Start Date 
End Date 
Applied Discount 
Discount Balance 
Discount MRR 
Net MRR 

R1 
Charge Period 1 
300 
1/1 
4/1 
300/m 
500/m300/m=200/m 
300 
0 
Charge Period 2 
4/1 
7/1 
0 
n/a 
n/a 
300 

R2 
Charge Period 1 
300

1/16 
4/1 
200/m 
200/m200/m=0/m 
200 
100 
Charge Period 2 
4/1 
7/1 
0 
n/a 
n/a 
300 
The subscriptionlevel MRR calculation:
By adding up the MRR of the charge segments or charge periods with the same start and end dates, the MRR of Subscription 1 and Subscription 2 is as shown in the table below:
Subscription 
Charge Period 
Start Date 
End Date 
Subscription Gross MRR 
Subscription Discount MRR 
Subscription Net MRR 

Subscription 1 
R1 Charge Period1 
1/1 
4/1 
300 
300 
0 
R1 Charge Period 2 
4/1 
7/1 
300 
n/a 
300 

Subscription 2 
R2 Charge Period 1 
1/16 
4/1 
300 
200 
100 
R2 Charge Period 2 
4/1 
7/1 
300 
n/a 
300 
Applying a subscription level fixedamount discount charge to multiple regular charges
This example demonstrates how a subscription level fixedamount discount charge is allocated on the four regular charges of a subscription. You can see the following analysis in this example:
 The discount applying sequence
 The discount amount allocation
 The chargelevel MRR calculation
 The subscriptionlevel MRR calculation
Example:
Suppose your customer has a half year termed subscription triggered on 1/1/2019. The subscription has 4 charges:
 R1: A recurring monthly regular charge of $300/month, effective from 1/1/2019
 O1: A onetime regular charge of $100 flat fee.
 R2: A recurring monthly regular charge of $300/month, effective from 1/16/2019
 O2: A onetime charge of $100 flat fee.
A subscription level fixedamount discount charge of $650/month is added to the subscription for the first quarter.
The discounting logic and the MRR calculation for this example can be illustrated by the diagram below:
The discount applying sequence:
When applying the subscriptionlevel discount, the regular charges in the subscription are sorted to the following order per The sequence of applying a fixedamount discount charge to multiple regular charges:
 R1
 R2
 O1
 O2
The discount amount allocation:
The discount is first applied to R1 and then to R2:
 The price of R1 in the charge period from 1/1 to 4/1 is $300/m, so after the discount is applied to R1, the discount balance as a recurring charge is $350/m (650/m300/m) in the charge period from 1/1 to 4/1.
 The discount balance is then applied to R2. As the price of R2 in the charge period from 1/16 to 4/1 is $300/m, so at maximum, a recurring discount charge of $300/m can be applied to R2. The discount balance as a recurring charge is $350/m in the charge period from 1/1 to 1/16 and $50 (calculated by 350300=50) in the charge period from 1/16 to 4/1.
When applying a discount to a onetime charge, the discount is applied as a total amount for the discount charge’s effective time frame. In this example, O1 and O2 are effective charges in January, the discount balance as a total amount for the monthly discount charge in January is 350300*16/31 = 195.161.
 The price of O1 is $100. After the discount is applied to O1, the discount balance in January is 195.161100=95.161.
 The price of O2 is $100. After the discount is applied to O2, no discount balance is left.
The chargelevel MRR calculation:
The Gross MRR, Discount MRR, and Net MRR of each regular charge segment or charge period are calculated as in the table below. O1 and O2 are onetime charges and are not counted in the MRR calculation. Note in this example, both R1 and R2 have only one charge segment.
Charge 
Charge Period 
Gross MRR 
Start Date 
End Date 
Applied Discount 
Discount Balance 
Discount MRR 
Net MRR 

R1 
Charge Period 1 
300 
1/1 
4/1 
300/m 
650/m300/m=350/m 
300 
0 
Charge Period 2 
4/1 
7/1 
0 
n/a 
n/a 
300 

R2 
Charge Period 1 
300

1/16 
4/1 
300/m 
350/m300/m=50/m
(350/m for 1/11/16) 
300 
0 
Charge Period 2 
4/1 
7/1 
0 
n/a 
n/a 
300 
The subscriptionlevel MRR calculation:
By adding up the MRR of the charge segments or charge periods with the same start and end dates, the MRR of the subscription is as shown in the table below:
Start Date 
End Date 
Subscription Gross MRR 
Subscription Discount MRR 
Subscription Net MRR 
Charge Segment or Charge Period Applicable 

1/1 
1/16 
300 
300 
0 
R1 Charge Period1 
1/16 
4/1 
600 
600 
0 
R1 Charge Period1 + R2 Charge Period 1 
4/1 
7/1 
600 
n/a 
600 
R1 Charge Period 2 + R2 Charge Period 2 
Applying a percentage discount charge to multiple regular charges
This example demonstrates how a subscription level percentage discount is applied to two regular charges in a subscription. You can see the following analysis in this example:
 The discount applying sequence
 The discount amount allocation
 The chargelevel MRR calculation
 The subscriptionlevel MRR calculation
Example:
Suppose your customer has a one year termed subscription with three charges triggered upon contract effective date on 1/1/2019:
 Charge 1 is a recurring monthly regular charge of $1000/month.
 Charge 2 is a onetime regular charge of $400 flat fee.
 Charge 3 is a recurring 20% percentage discount charge to apply at the subscription level but limited to recurring charges only.
Then the subscription is amended with two order actions as below:
 Order Action 1 updated the price of Charge 1 to $1200/month with the new price triggered on 7/1/2019.
 Order Action 2 added a new recurring monthly charge (Charge 4) to the subscription triggered on 9/1/2019. The price is $800/month.
 Order Action 3 updated Charge 3 and removed the percentage discount from 11/1/2019.
The discounting logic and the MRR calculation for this example can be illustrated by the diagram below:
The discount applying sequence:
To apply a percentage discount charge to multiple regular charges, you do not have to consider the applying sequence, as each regular charge has the same discount percentage.
The discount amount allocation:
The two regular charges (Charge 1 and Charge 4) have the same discount percentage. The discount amount is calculated by Regular Charge Price * Discount Percentage.
This discount charge is limited to recurring charges only, so it is not applicable to Charge 2, which is a onetime charge.
The chargelevel MRR calculation:
The Gross MRR, Discount MRR, and Net MRR of each charge segment or charge period in the regular charges are calculated as in the table below.
Charge Segment 
Charge Period 
Gross MRR 
Discount Charge 
Start Date 
End Date 
Applicable Discount 
Discount MRR 
Net MRR 

Charge1 Segment 1 
N/A 
1000 
20% 
1/1/2019 
7/1/2019 
1000*20%= 200 
200 
800 
Charge 1 Segment 2 
Charge Period 1 
1200

20% 
7/1/2019 
11/1/2019 
1200*20%=240 
240 
960 
Charge Period 2 
n/a 
11/1/2019 
1/1/2020 
0 
n/a 
1200 

Charge 4 Segment 1

Charge Period 1 
800

20% 
9/1/2019 
11/1/2019 
800*20%=160 
160 
640 
Charge Period 2 
n/a 
11/1/2019 
1/1/2020 
0 
n/a 
800 
The subscriptionlevel MRR calculation:
By adding up the Gross MRR, Discount MRR, and Net MRR of the charge segments or charge periods with the same start and end dates, the MRR of the subscription is as shown in the table below:
Start Date 
End Date 
Subscription Gross MRR 
Subscription Discount MRR 
Subscription Net MRR 
Charge Segment or Charge Period Applicable 

1/1/2019 
7/1/2019 
1000 
200 
800 
Charge 1/Segment 1 
7/1/2019 
9/1/2019 
1200 
240 
960 
Charge 1/Segment 2/Charge Period 1 
9/1/2019 
11/1/2019 
1200+800 
(240+160)= 400 
1600 
Charge 1/Segment 2/Charge Period 1 + Charge 4/Segment 1/Charge Period 1 
11/1/2019 
1/1/2020 
1200+800 
0 
2000 
Charge1/Segment2/Charge Period 2+ Charge 4/Segment 1/Charge Period 2 
Applying both a fixedamount and percentage discount charges to one regular charge
This example demonstrates how two subscription level discounts (both a fixedamount and percentage discounts) are allocated on the two regular charges of a subscription. You can see the following analysis in this example:
 The discount applying sequence
 The discount amount allocation
 The chargelevel MRR calculation
 The subscriptionlevel MRR calculation
Example:
Suppose your customer is to apply two subscription level discount charges to a onequarter termed subscription, which has two regular recurring charges.
 Charge 1: Monthly regular charge: $5/month for the first month, $10 for the second, and $15 for the third. Effective range: 1/1/2019  4/1/2019.
 Charge 2: Monthly regular charge: $3/month. Effective range: 1/1/2019  4/1/2019.
 Discount 1: Monthly fixedamount discount charge: $6/month. Effective range: 1/15/2019  4/1/2019.
 Discount 2: Percentage discount: 10%. Effective range: 2/15/2019  4/1/2019.
 Discount 1 has a discount class of higher priority than that of Discount 2.
The discounting logic and the MRR calculation for this example can be illustrated by the diagram below:
The discount applying sequence:
As the discount priority of Discount 1 is higher than that of Discount 2, when they apply to the same regular charge, Discount 1 (the fixedamount discount) is applied first. Discount 2 (the percentage discount) is applied to a regular charge after Discount 1 has been applied. See The sequence of applying multiple discount charges to one regular charge.
When Discount 1 (the fixedamount discount) is applied to both regular charges, because Charge 1 and Charge 2 have the same charge type (they are both regular charges) and Charge 1 has a smaller charge number (Charge 1< Charge 2), Charge 1 will get the discount allocation first. Charge 2 will get the remaining discount amount from Discount 1 if there is a discount balance. See The sequence of applying a fixedamount discount charge to multiple regular charges.
The discount amount allocation:
1/152/1: Discount 1 is applied to Charge 1 first, and the amount applicable is $5/m at maximum (The net price of Charge 1 in this charge period is already 0 now. It cannot be a negative value). After that, the discount balance of Discount 1 is $1/m and is applied to Charge 2.
2/12/15: Discount 1 is applied to Charge 1 first, and the amount applicable is $6/m. After that, the discount balance of Discount 1 is 0. Therefore, no discount is allocated on Charge 2.
2/153/1: In this charge period,
 Discount 1 is applied to Charge 1 first, and the discount amount applicable is $6/m. After that, the discount balance of Discount 1 is 0. Therefore, no discount is allocated on Charge 2.
 Discount 2 (the percentage discount) is then applied to Charge 1 and Charge 2.
 When it is applied to Charge 1, the net price (after Discount 1 is applied) should be used to calculate the discount amount. Therefore, the discount amount applied to Charge 1 by Discount 2 is (106)*10%=$0.4/m.
 When it is applied to Charge 2, the discount amount is 3*10%=$0.3/m.
 In summary, the discount amount allocated to Charge 1 is 6+0.4=$6.4/m, and the discount amount allocated to Charge 2 is $0.3/m.
3/1  4/1: Similar as in the charge period above, in this charge period:
 Discount 1 is applied to Charge 1 first, and the discount amount applicable is $6/m. After that, the discount balance of Discount 1 is 0. Therefore, no discount is allocated on Charge 2.
 Discount 2 (the percentage discount) is then applied to Charge 1 and Charge 2.
 When it is applied to Charge 1, the net price (after Discount 1 is applied) should be used to calculate the discount amount. Therefore, the discount amount applied to Charge 1 by Discount 2 is (156)*10%=$0.9/m.
 When it is applied to Charge 2, the discount amount is 3*10%=$0.3/m.
 In summary, the discount amount allocated to Charge 1 is 6+0.9=$6.9/m, and the discount amount allocated to Charge 2 is $0.3/m.
The chargelevel MRR calculation:
The Gross MRR, Discount MRR, and Net MRR of each charge segment and charge period are calculated as in the table below.
Charge Segment 
Charge Period 
Gross MRR 
Discount Charge 
Start Date 
End Date 
Applied Discount 
Discount MRR 
Net MRR 

Charge 1 Segment 1 
Charge Period 1 
5 
n/a 
1/1 
1/15 
0 
n/a 
5 
Charge Period 2 
Discount 1 (D1) 
1/15 
2/1 
5 
5 
0 

Charge 1 Segment 2 
Charge Period 3 
10 
D1 
2/1 
2/15 
6 
6 
4 
Charge Period 4 
D1, Discount 2 (D2) 
2/15 
3/1 
6.4 
6.4 
3.6 

Charge 1 Segment 3 
Charge Period 5 
15 
D1, D2 
3/1 
4/1 
6.9 
6.9 
8.1 
Charge 2 Segment 1 
Charge Period 1 
3

n/a 
1/1 
1/15 
0 
n/a 
3 
Charge Period 2 
D1 
1/15 
2/1 
1 
1 
2 

Charge Period 3 
D1 
2/1 
2/15 
0 
0 
3 

Charge Period 4 
D2 
2/15 
3/1 
0.3 
0.3 
2.7 

Charge Period 5 
D2 
3/1 
4/1 
0.3 
0.3 
2.7 
The subscriptionlevel MRR calculation:
By adding up the MRRs of the charge segments or charge periods with the same start and end dates, the MRR of the subscription is as shown in the table below:
Start Date 
End Date 
Subscription Gross MRR 
Subscription Discount MRR 
Subscription Net MRR 
Segment or Charge Period Applicable 

1/1 
1/15 
8 
n/a 
8 
Charge 1/Charge Period 1, Charge 2/Charge Period 1 
1/15 
2/1 
8 
6 
2 
Charge 1/Charge Period 2, Charge 2/Charge Period 2 
2/1 
2/15 
13 
6 
7 
Charge 1/Charge Period 3, Charge 2/Charge Period 2 
2/15 
3/1 
13 
6.7 
6.3 
Charge 1/Charge Period 4, Charge 2/Charge Period 3 
3/1 
4/1 
18 
7.2 
10.8 
Charge 1/Charge Period 5, Charge 2 /Charge Period 4 
Contracted MRR
There are accountlevel CMRR and subscriptionlevel CMRR with different calculation logic.
Calculation  Notes  

Accountlevel CMRR  The accountlevel CMRR represents the future expected MRR that includes future upgrades, downgrades, upsells, and cancellations.  
Subscriptionlevel CMRR  The subscriptionlevel CMRR directly adds the MRR of all the charges together (including past, current, and future amount).  The charges must meet the following requirements:
Otherwise, the CMRR is 0. 
Note that if a futuredated cancellation is made on an active subscription, the subscriptionlevel CMRR still has value but the accountlevel CMRR is 0.