// Metrics
SaaS Quick Ratio
(New MRR + Expansion MRR) / (Churned MRR + Contraction MRR). Growth efficiency vs. leakage.
In depth
Above 4 is elite, 2–4 is healthy, below 1 means the bucket is leaking faster than sales can fill it. Popularised by Insight Partners as a single-number SaaS health check.
Related terms
NRR
Net Revenue Retention, % of recurring revenue retained from existing customers over 12 months, including expansion, minus churn and contraction.
Churn
The rate at which customers or revenue leave the business in a period.
Expansion ARR
Incremental ARR from existing customers via upsell, cross-sell, seat expansion or usage growth.