calc.engineer / General & Math / Percentage Calc

Percentage Calc v1.0.0

Calculate what percentage one number is of another. Given a value and a total, returns the percentage, decimal form, and simplified fraction. For example, 3 out of 4 yields 75%, 0.75, and '3/4'. Commonly used for test scores, survey results, financial ratios, completion rates, and unit conversions. Chain with percentage_increase to compare successive measurements or use with test_grade for academic scoring.

feeds percentage_increase →
The part or numerator value
The whole or denominator value (must not be zero)
Fill in the inputs and Compute to see the structured result.

From an agent (MCP) or the API

curl -X POST https://calc.engineer/api/percentage_calc \
  -H "Content-Type: application/json" \
  -d '{"value": …, "total": …}'

MCP: connect to https://calc.engineer/mcp and call percentage_calc.

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