Percentage Calculator
Calculate percentages, percentage increases, decreases and more with our free online calculator.
What is X% of Y?
X is what percentage of Y?
Percentage Increase
Percentage Decrease
What Is a Percentage?
A percentage is a way of expressing a number as a fraction of 100. The word percentage means "per hundred." Percentages are commonly used in mathematics, finance, shopping, statistics, business and everyday calculations.
How to Calculate a Percentage
To calculate a percentage of a number, multiply the percentage by the number and divide the result by 100.
For example, 20% of 500 is:
20 × 500 ÷ 100 = 100
Percentage Increase Formula
Percentage increase can be calculated using the following formula:
Percentage Increase = ((New Value − Original Value) ÷ Original Value) × 100
Percentage Decrease Formula
Percentage decrease can be calculated using:
Percentage Decrease = ((Original Value − New Value) ÷ Original Value) × 100
Frequently Asked Questions
What is 20% of 500?
20% of 500 is 100.
How do I calculate percentage increase?
Subtract the original value from the new value, divide the result by the original value and multiply by 100.
Is this percentage calculator free?
Yes. Easy Online Tool provides this percentage calculator completely free to use.
Does the calculator work on mobile phones?
Yes. The calculator is designed to work on smartphones, tablets and desktop computers.
Learn More About Percentages
Want to learn how percentages are calculated? Read our detailed guide with formulas, examples, percentage increase and decrease methods:
How to Calculate a Percentage: Formula, Examples & Easy Methods
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What Is a Percentage Calculator?
A Percentage Calculator is a free online tool that helps you calculate percentages quickly and easily. It can be used to find a percentage of a number, determine what percentage one number is of another, and solve common percentage problems.
How to Calculate a Percentage
To calculate a percentage of a number, multiply the number by the percentage and divide by 100.
Percentage Formula: Percentage = (Part ÷ Whole) × 100
For example, 20 out of 100 is 20%, because (20 ÷ 100) × 100 = 20%.
Common Percentage Calculations
Percentages are commonly used for discounts, exam scores, price changes, statistics, taxes, tips and many other everyday calculations.
Why Use a Percentage Calculator?
A percentage calculator saves time and helps reduce calculation errors. It is useful for students, shoppers, businesses and anyone who needs to work with percentages.
Percentage Calculator FAQs
How do I calculate a percentage of a number?
Multiply the number by the percentage and divide the result by 100. For example, 10% of 200 is 20.
How do I find what percentage one number is of another?
Divide the first number by the second number and multiply the result by 100.
How do I calculate percentage increase?
Subtract the original value from the new value, divide the difference by the original value, and multiply by 100.
How do I calculate percentage decrease?
Subtract the new value from the original value, divide the difference by the original value, and multiply by 100.
Use our free Percentage Calculator above to solve common percentage calculations quickly and easily.