Percentage Calculator

Calculate percentages three ways: find X% of Y, find what percent X is of Y, or calculate the percentage change between two numbers.

What is X% of Y?

X (%)

of Y

X is what % of Y?

is … % of Y

% change from X to Y

From

How It Works

Choose the calculation type: find what percentage one number is of another, calculate a percentage of a number, or find the percentage change between two values. Fill in the known values and the result appears instantly. All three modes are available on one page without switching tools.

Use Cases

Calculating a tip or service charge on a restaurant bill
Working out a discount or sale price
Finding what share of a budget a line item represents
Computing year-on-year growth rates for a report