@toolsnap/percentage-calculator

Lightweight, zero-dependency percentage calculation utilities for Node.js and browsers.

Installation

npm install @toolsnap/percentage-calculator

Usage

const { of, ofValue, change, increase, decrease } = require('@toolsnap/percentage-calculator');

of(25, 200);        // 12.5 — 25 is 12.5% of 200
ofValue(15, 200);   // 30   — 15% of 200
change(80, 100);    // 25   — 25% increase
increase(100, 20);  // 120  — 100 + 20%
decrease(100, 20);  // 80   — 100 - 20%

API

| Function | Description | |----------|-------------| | of(part, total) | What percentage part is of total | | ofValue(percent, value) | percent% of value | | change(oldVal, newVal) | Percentage change between two values | | increase(value, percent) | Increase value by percentage | | decrease(value, percent) | Decrease value by percentage |

Online Tool

Try our free online percentage calculator — no install needed.

License

MIT