➗Percentage Calculator

Calculate percentages, percentage change, and percentage differences.

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What is X% of Y?

X (%)

of

Y

X is what % of Y?

X

of

Y

% change from X to Y

From (X)

to

To (Y)

About Percentage Calculator

Calculate percentages in multiple ways: find what percentage one number is of another, calculate percentage increase or decrease, or find the original value from a percentage. A versatile tool for everyday math, finance, and data analysis.

How to Use Percentage Calculator

1
Choose calculation type
Select the type of percentage calculation: percent of a number, percentage change, or reverse percentage.
2
Enter values
Input the numbers for your calculation.
3
View result
See the calculated percentage or value instantly.

Common Use Cases

Calculating discounts and sale prices
Finding percentage change in revenue or metrics
Computing tax or tip amounts
Grading tests and calculating scores

Frequently Asked Questions

How do I calculate a percentage increase?

Enter the original value and the new value, and the tool will calculate the percentage change — positive for an increase, negative for a decrease.

Can I find the original number from a percentage?

Yes, use the reverse percentage mode to input the percentage and the result to find the original base value.

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