98.7 per cent monthly NRR sounds healthy. Annualised properly, it is 85.5 per cent
NRR and GRR Calculator
Net and gross revenue retention from your monthly movements, compounded to the annual figure an investor’s analyst will recompute anyway.
NRR and GRR Calculator
Net and gross revenue retention, computed monthly and annualised properly, with the conventions stated because investors quote one and mean another.
The two conventions that get blurred
GRR is what the existing base would do with no expansion at all: churn and contraction only, capped at 100. It measures the leak. NRR adds expansion back and is the number that can exceed 100.
Both are computed monthly here and annualised by compounding, because a 98.7 per cent month sounds fine and compounds to 85.5 per cent over a year, which is the version an investor hears.
New customers never count in either. Retention measures what last month's base did, and mixing new sales into it is the flattering error the SaaS Metrics, Honestly guide names.
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Both measures across twelve months in Excel, monthly and annualised, from the same waterfall.
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