Net Revenue Retention Rate (NRR) and Gross Revenue Retention Rate (GRR) measure revenue retention within an existing customer cohort. Both account for revenue lost through churn and downgrades. NRR also includes expansion through upsells, cross-sells, and price increases; GRR excludes expansion.
GRR is capped at 100%, while NRR can exceed 100% when expansion outweighs lost revenue. Use GRR to examine retention without expansion masking losses, and NRR to understand the cohort’s overall revenue change. Neither metric includes revenue from new customers.
For example, improving GRR from 85% to 92% after introducing an onboarding programme indicates stronger base revenue retention. If starting revenue is $100, GRR of 90% means $90 remains before expansion. NRR of 115% means expansion adds $25: 25 percentage points of starting revenue.
A business can also report NRR of 115% alongside GRR of 75%. Expansion offsets substantial revenue losses, so examine churn and contraction alongside the net result. Strong NRR alone does not establish strong retention across all customers.