Function formatPercentage

Format a numeric ratio as a percentage string.

Multiply by 100. Falsy precision uses Math.floor, including for negative ratios; truthy precision uses native toFixed and preserves trailing zeros. Floating-point arithmetic and native precision conversion remain unchanged.

Usage:

import { formatPercentage } from "mazey";

const ret1 = formatPercentage(0.2);
const ret2 = formatPercentage(0.2, 2);
console.log(ret1);
console.log(ret2);
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Output:

20%
20.00%
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