Percentage Calculator
Calculate X% of Y, what percent X is of Y, and percentage change.
X% of Y
X is what % of Y
Percentage Change
About Percentage Calculations
This calculator performs common percentage operations and runs entirely in your browser.
About this Percentage Calculator
Compute X% of Y, find what percent X is of Y, and calculate percentage change. Our percentage calculator handles all common percentage calculations including finding percentages, calculating percentage of values, and determining percentage changes. Perfect for discounts, markups, growth rates, or any scenario requiring percentage calculations. The tool provides accurate calculations with clear results.
Key Features
Calculate X% of Y
Find what percent X is of Y
Calculate percentage change
Multiple calculation modes
Real-time calculation
Clear result display
Support for various percentage scenarios
Works entirely in your browser for privacy
How to Use
Select calculation type (percent of, what percent, change)
Enter the values for your calculation
View the calculated result
Use for discounts and markups
Calculate growth rates
Find percentage relationships
Use for any percentage calculation
Copy results if needed
Popular Use Cases
Calculate discounts and sale prices
Compute markups and profit margins
Calculate percentage growth or decline
Find percentage relationships
Calculate tax and tip percentages
Compute percentage increases or decreases
Calculate percentage of totals
Find percentage values
Tips & Best Practices
Use 'X% of Y' to find a percentage of a value
Use 'What percent' to find the percentage relationship
Use 'Percentage change' to calculate growth or decline
Verify calculations for important financial decisions
Understand percentage formulas for better comprehension
Use for accurate percentage calculations
Check results for reasonableness
Frequently Asked Questions
How do I calculate a percentage of a number?
Enter the percentage value and the number, then select 'X% of Y'. The tool will calculate the percentage of the number.
How do I find what percent one number is of another?
Enter both numbers and select 'What percent X is of Y'. The tool will calculate the percentage relationship.
How do I calculate percentage change?
Enter the original value and the new value, then select 'Percentage change'. The tool will calculate the percentage increase or decrease.
Can I calculate discounts?
Yes, use 'X% of Y' to calculate discount amounts, or use percentage change to find the discount percentage.