%of
Result
50.0000
25% of 200 = 50.0000
Quick Reference
About Percentage Calculator
Calculating percentages, discounts, and markups can be confusing. Our free online Percentage Calculator provides a suite of tools to instantly solve common percentage problems without needing to remember the math formulas.
How It Works
The tool includes multiple calculators. It uses standard mathematical formulas to find 'X% of Y', calculate the percentage increase or decrease between two numbers, or determine what percentage one number is of another.
Common Use Cases
- Calculating the final price of an item after a store discount
- Determining the percentage of a tip to leave at a restaurant
- Calculating profit margins or markups for a retail business
- Finding the percentage growth of website traffic or sales month-over-month
Frequently Asked Questions
The formula is: ((New Value - Old Value) / Old Value) * 100. Our calculator does this automatically for you.
Yes, the calculator fully supports decimal numbers for precise financial or scientific calculations.