Percentage Calculator
Calculate percentages quickly and easily with step-by-step solutions
Calculation Type
Calculate what percentage one number is of another. Example: 20 is what % of 80?
Calculate a percentage of a number. Example: What is 25% of 200?
Find the total when you know a value and its percentage. Example: 50 is 25% of what?
Calculate the percentage increase or decrease between two values.
Increase a number by a percentage. Example: Increase 100 by 20%.
Decrease a number by a percentage. Example: Decrease 100 by 20%.
Calculate selling price by adding a markup percentage to cost.
Calculate the profit margin percentage between cost and selling price.
Calculate the final price after applying a discount percentage.
Calculate the total amount including tax percentage.
Convert a ratio to a percentage. Example: 3:4 to 75%.
Convert a percentage to a simplified ratio. Example: 75% to 3:4.
Quick Shortcuts
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Common Percentages
- • 10% = 0.1 (divide by 10)
- • 25% = 1/4 (quarter)
- • 50% = 1/2 (half)
- • 75% = 3/4 (three quarters)
- • 100% = 1 (whole)
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