How do I calculate X% of Y?

Multiply Y by X, then divide by 100. For example, 20% of 150 is (20 × 150) / 100 = 30.

How is percentage increase calculated?

Subtract the original value from the new value, divide by the original value, then multiply by 100.

Percentage Calculator

Find what X% of Y is, what percentage X is of Y, or the percentage change between two numbers.

How this is calculated

X% of Y = (X ÷ 100) × Y

About this calculator

The percentage calculator covers the five most common percentage questions in one place: finding a percentage of a number, finding what percentage one number is of another, and calculating percentage increase, decrease or difference between two values.

Worked example

What is 20% of 150?

Result: 30

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Frequently asked questions

How do I calculate X% of Y?

How is percentage increase calculated?

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