SaaS Quick Ratio vs Accounting Quick Ratio
The SaaS quick ratio (MRR gained ÷ MRR lost) and the accounting quick ratio (liquid assets ÷ current liabilities) share a name and nothing else. One measures growth quality; the other measures short-term solvency.
Formula
Worked example
A startup can have a SaaS quick ratio of 5 (superb growth efficiency) and an accounting quick ratio of 0.6 (cannot cover near-term liabilities) at the same time — and vice versa.
The accounting version, also called the acid-test ratio, predates SaaS by decades and lives in balance-sheet analysis; above 1.0 means liquid assets cover current liabilities. The SaaS version was coined for subscription-growth analysis and lives in MRR movements.
The collision matters in practice: search a finance tool or brief an accountant with just "quick ratio" and you may get the wrong one. In a SaaS context, say "SaaS quick ratio"; in a solvency context, say "acid-test".
Compute it: SaaS quick ratio calculator