Browse All Tools
HomeCalculatorsPDF ToolsDocument GeneratorsBlogAboutContact
Home/Calculators/Percentage Calculator

Percentage Calculator

Calculate percentages in different ways

Last Updated: July 2026
First number
Second number
Type of calculation
Result
—
Calculated value
Formula Used
—
Calculation method
Explanation
—
Step-by-step

Percentage Calculation

ComponentValue

Advertisement

What Is a Percentage Calculator?

A Percentage Calculator performs various percentage calculations: finding what percentage one number is of another, calculating X% of a value, and determining percentage change between two values.

Percentages are used everywhere: discounts, interest rates, statistics, grades, and more. This calculator helps you quickly compute percentages without manual calculations.

Percentage Formulas

% of: (X / Y) × 100
X% of Y: (X / 100) × Y
% Change: ((New - Old) / |Old|) × 100
% of = What percent is X of YX% of = Calculate X percent of Y% Change = Increase or decrease

Frequently Asked Questions

How to calculate percentage?
To find what percentage X is of Y: (X / Y) × 100. For example, 50 is what % of 200? (50/200) × 100 = 25%. To find X% of Y: (X/100) × Y. For example, 25% of 200 = (25/100) × 200 = 50.
How to calculate percentage increase?
Percentage Increase = ((New Value - Old Value) / Old Value) × 100. For example, if price increased from 100 to 120: ((120-100)/100) × 100 = 20% increase.
How to calculate percentage decrease?
Percentage Decrease = ((Old Value - New Value) / Old Value) × 100. For example, if price decreased from 100 to 80: ((100-80)/100) × 100 = 20% decrease.
How to add or subtract percentage?
To add X% to a number: Number × (1 + X/100). To subtract X%: Number × (1 - X/100). For example, add 10% to 100: 100 × 1.10 = 110. Subtract 10%: 100 × 0.90 = 90.
What is percentage points vs percentage?
Percentage points refer to the absolute difference between two percentages. For example, if interest rate goes from 5% to 7%, it increased by 2 percentage points (not 2%). The percentage increase is (7-5)/5 × 100 = 40%.

Related Calculators

Increase

Percentage Increase Calculator

Calculate percentage increase.

Decrease

Percentage Decrease Calculator

Calculate percentage decrease.

Ratio

Ratio Calculator

Calculate ratios.

Discount

Discount Calculator

Calculate discounts.

Found This Useful?

Calculate percentages quickly and accurately.

Try Another Calculator