What Is Net Revenue Retention (NRR)?
Net Revenue Retention (NRR) measures how much revenue is retained from a cohort of existing customers over 12 months, including expansions and contractions. NRR above 100% means the existing base is growing on its own. World-class SaaS businesses often exceed 120% NRR.
Why it matters: this metric helps founders separate random variation from real business movement. Decisions improve when the metric is tracked in trend form, not one-off snapshots.
How to use it in practice: pair this metric with at least one upstream and one downstream signal. That way, you can explain why it changed and what action should come next.
In Assist Founder, this term appears in context with related indicators so you can move from definition to decision without switching tools.