Three of the most common percentage questions, in one place: finding a percentage of a number, finding what percent one number is of another, and finding the percentage change between two numbers.
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Percentage Calculator
TL-11
Three common percentage calculations in one place.
What is X% of Y?
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Result
X is what % of Y?
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Result
Percentage change from X to Y
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Change
How to use the Percentage Calculator
Pick the calculation that matches your question.
Enter your two numbers.
Click Calculate to see the result instantly.
Tips
Percentage change is calculated relative to the starting value — a drop from 100 to 50 is −50%, not −100%.
For discounts, "X% of Y" tells you the amount taken off, not the final price.