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finance.retirement-net-retention Calculator
Calculates Net Revenue Retention (NRR) in a retirement planning context from starting revenue, expansion, contraction, and churn. NRR above 120% means the existing customer base grows revenue by 20%/year without new customer acquisition — the defining characteristic of elite SaaS companies.
Inputs
Savings
Rate of charge flow (A). I = V/R. Above ~100 mA through the body can be lethal. Fuses protect against overcurrent.
Contrib
Reference formula or conversion factor shown for context.
Rate
Reference formula or conversion factor shown for context.
Years
Reference formula or conversion factor shown for context.
Results
total contributions
The combined total across all inputs and components.
nest egg
The projected total savings or investment portfolio value at the target date — the fund you will draw from in retirement.
growth
The absolute increase in value over the period. Growth = final value minus initial value.
growth multiple
Final value divided by initial investment. A 3x growth multiple means the investment tripled. Also called MOIC (multiple on invested capital).