What this calculator does
Add a signed list of amounts and show a running total like a tape calculator.
How it works
The calculator evaluates running total = Σ signed entries. Inputs are checked before calculation, and invalid values such as zero denominators or out-of-range selections produce a clear error instead of a misleading result.
Input query strings and outputs
Use an input name in this page’s URL as ?name=value, and join additional inputs with &. Portable shared links may instead use the compact ?ac= state parameter.
Input query strings
1-
?entries=Signed numbers (comma or space separated)Text · Required · Default: 125.50, -20, 35.25, -4.75
Outputs
4-
totalTotalNumber · Primary output
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entryCountNumber of entriesWhole number
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positiveTotalPositive entriesNumber
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negativeTotalNegative entriesNumber
Inputs and results
The inputs are Signed numbers (comma or space separated). Results include Total, Number of entries, Positive entries, Negative entries.