Percentage Calculator

Three types of percentage calculations in one place. Instant results as you type.

What is X% of Y?

Percentage (%)

of Number

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X is what % of Y?

Value (X)

Total (Y)

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Percentage Change (Increase / Decrease)

Original Value

New Value

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Add / Subtract Percentage

Base Number

Percentage (%)

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Enter values above

Frequently Asked Questions

How do I calculate 20% of 150?

Use the first calculator: enter 20 in Percentage and 150 in Number. Result: 30. Formula: (20 ÷ 100) × 150 = 30.

How do I calculate percentage increase?

Use the third calculator. Formula: ((New − Original) ÷ Original) × 100. Example: from 80 to 100 = 25% increase.

What is 15% tip on $85?

Enter 15% of 85 in the first calculator. Result: $12.75. Total with tip: $97.75.