Percentage Calculator

Calculate percentages in three common ways. Find what is X% of Y, what percent X is of Y, or percentage increase/decrease.

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Percentage Basics

A percentage represents a fraction of 100. It's a convenient way to express proportions, compare values, and calculate discounts, taxes, and growth rates.

% of a number: (Percentage/100) × Number
% one is of another: (Part/Whole) × 100
% change: ((New−Old)/Old) × 100