Percentage Calculator
Calculate percentages quickly and easily. Find percentages, discounts, tips, percentage change, and more.
What is ?% of ??
Common Calculations
How to Use the Percentage Calculator
This calculator supports five common percentage calculations:
X% of Y
Find what a percentage of a number is. For example, "What is 15% of 200?" Answer: 30.
X is what % of Y
Find what percentage one number is of another. For example, "25 is what percent of 200?" Answer: 12.5%.
Percentage Change
Calculate the percentage increase or decrease between two values. Perfect for tracking price changes, growth rates, or comparing values over time.
Add/Subtract Percentage
Add or subtract a percentage from a number. Useful for calculating discounts, taxes, tips, and markups.
Common Use Cases
- Sales Tax: Add tax percentage to a price
- Discounts: Calculate sale prices (subtract %)
- Tips: Calculate tip amount at restaurants
- Grade Calculation: Find your test score percentage
- Investment Returns: Calculate percentage gains/losses