Percentage Calculator

Calculate percentages quickly and easily

What is X% of Y?

What is% of=?

X is what % of Y?

is what % of=?

Percentage Change

FromTo=?

About Percentage Calculations

Percentages express a number as a fraction of 100. They are used everywhere — from discounts and taxes to statistics and scientific measurements.

Percentage change calculates the relative difference between two values: ((New - Old) / Old) × 100%. A positive result indicates an increase, while a negative result indicates a decrease.

This calculator provides three common percentage operations: finding a percentage of a number, determining what percentage one number is of another, and calculating percentage change.