Percentage Calculator
Calculate percentages, percentage of a number, increases, decreases and percentage differences.
Four Ways to Calculate Percentages
Percentage calculations are commonly used for marks, discounts, growth, comparisons and everyday calculations.
What is X% of Y?
Example: 20% of 500 = 100
X is What Percent of Y?
Example: 50 of 200 = 25%
Percentage Increase
Example: 1000 → 1200 = 20%
Percentage Decrease
Example: 1000 → 800 = 20%
How Does Percentage Work?
A percentage represents a value out of 100. For example, 25% means 25 out of every 100.
Percentages make it easier to compare values even when the original numbers are different.
They are commonly used for marks, interest rates, discounts, salary changes, taxes and financial returns.
Percentage increase and decrease are calculated relative to the original value. Increasing a number by a certain percentage and then decreasing the result by the same percentage does not normally return to the original value.
About Percentage Calculator
Calculate common percentage problems including percentage of a value, what percent one number is of another, and percentage increase or decrease.
How to use this calculator
- Enter the required values in the calculator.
- Select any applicable rate, option or calculation mode.
- Click the calculate button if required.
- Review the calculated result and related information.
Calculator results are provided for informational and estimation purposes. Verify important financial, academic or government-related calculations using applicable official rules or documents.