Gross Dollar Retention tracks the revenue (exclusive of expansion) generated by a cohort (a set of customers grouped by sign-up period) over time, compared to the sign-up date of the cohort. Gross Dollar Retention shows the impact that contraction and churn have revenue, and when compared to Logo Retention reveals whether larger or smaller customers are more likely to churn.
Where a cohort is the set of new customers in month n, and x = the number of months since month n:
Example: n = Jan 2021, x = 3
SaaSGrid also computes the weighted average (Average) across cohorts.
For quarterly and annual aggregation, the formula is applied using revenue from the last month of the period.