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💯 Percentage Calculator

Solve any percentage problem instantly — find percent, calculate change, and more.

Percentage Calculator

What is X% of Y?

% of

X is what % of Y?

is what % of

Percentage Change

→
💡 Pro Tip: Use percentage change to compare sales growth, grade improvements, or price changes. A negative result means a decrease.

About Percentage Calculator

Our percentage calculator solves the three most common percentage problems: finding a percentage of a number, finding what percentage one number is of another, and calculating percentage change between two values. All calculations happen instantly as you type.

Frequently Asked Questions

How do I calculate a percentage increase?
Use the Percentage Change section. Enter the old value first, then the new value. A positive result shows increase, negative shows decrease.
How to calculate percentage off a price?
Use "What is X% of Y?" Enter the discount percentage and the original price. The result is the discount amount. Subtract from original price to get the final price.