Percentage Calculator

Calculate percentages with multiple modes: find percentages, calculate changes, and compute increase/decrease values.

What is X% of Y?

What is% of=

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X is what % of Y?

is what % of=

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X is Y% of what?

is% of

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Percentage change from X to Y

Fromto=

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Increase / Decrease X by Y%

± % =

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Increase

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Decrease

Percentage Formulas - Technical Details

Percentage calculations are essential for data analysis, discounts, growth rates, and more. The tool supports common operations like finding a percentage of a value, determining what percentage one value is of another, and calculating percentage changes.

Command-line Alternative

// Percentage formulas\nX% of Y = (X/100) × Y\nX is what % of Y = (X/Y) × 100\n% Change = ((New-Old)/Old) × 100