Bigdelta Guides
Subscription revenue
MRR, ARR, churn, retention and the other numbers behind recurring revenue.
SaaSSubscription revenue
How to calculate churn rate
The exact formulas for customer churn, revenue churn, net revenue churn and NRR — each with a worked example, and the annualising trap to avoid.
SaaSSubscription revenue
Annual churn rate: formula and monthly conversion
Annual churn isn't monthly × 12. The compounding formula in both directions, a conversion table, and when to measure directly instead.
SaaSSubscription revenue
How to calculate NRR from Stripe data
A step-by-step method for computing net revenue retention from Stripe subscriptions — and the traps that skew it.