What is Net Dollar Retention (NDR)?
Definition
Net Dollar Retention (NDR) is another name for Net Revenue Retention (NRR). It measures revenue retention from existing customers including expansion and churn.
Formula
NDR = ((Starting MRR + Expansion - Churn - Contraction) / Starting MRR) × 100
NDR and NRR are the same metric with different names. Both measure net revenue retention.