Fig. 01 · Glossary
Net Dollar Retention
Also known as NDR, Net Revenue Retention
Definition
Net Dollar Retention, or NDR, measures how much recurring revenue remains from an existing customer cohort after churn, contraction, expansion, and upsell. It is closely related to Net Revenue Retention and is a core signal of durable recurring revenue.
NDR above 100% means existing customers expand enough to offset losses. That is a powerful signal, but only if definitions are consistent and cohorts are clean.
Buyers look for retention quality by segment, not just the blended headline number.
Human Renaissance glossary · operator-grade definitions · Research methodology
