Legal & Policies

Budget & Credit Formula Verification

9 of the 9 published budget & credit calculators have an automated formula test suite. Each row gives one calculator's passing cases and the kinds of check behind them.

Last updated 16 September 2026

This is the budget & credit section of the formula verification report, which explains what each kind of case tests, how the counts are produced and what they do not prove. Rows run from the largest suite to the smallest; each row's address ends in the calculator's slug, so one calculator's evidence can be linked and cited on its own. The test file behind every row, and the per-kind numbers, are in the machine-readable report.

Every budget & credit calculator, with its case mix

Automated formula-test coverage for the Budget & Credit calculators: passing cases and case mix per calculator
CalculatorCasesCase mix
50/30/20 Budget Calculator12252 golden · 59 boundary · 1 property · 10 structural
Budget Calculator11432 golden · 58 boundary · 7 property · 17 structural
Net Worth Calculator10955 golden · 39 boundary · 4 property · 11 structural
Credit Card Payoff Calculator8319 golden · 24 boundary · 22 property · 18 structural
Debt Payoff Calculator7310 golden · 20 boundary · 31 property · 12 structural
Balance Transfer Calculator652 independent · 17 golden · 19 boundary · 11 property · 16 structural
Credit Utilization Calculator652 independent · 17 golden · 19 boundary · 11 property · 16 structural
Emergency Fund Calculator652 independent · 17 golden · 19 boundary · 11 property · 16 structural
Debt Payoff vs Investing Calculator221 independent · 7 golden · 6 boundary · 6 property · 2 structural
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Questions about this policy?Published by Calculator Matters (calculatormatters.com). Last reviewed 16 September 2026. Created and maintained by Jay Sudha (about Calculator Matters). These pages are reviewed regularly, and questions are always welcome.
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