Calculate percentages easily
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About Percentage Calculations
This calculator helps you perform various percentage calculations quickly and easily:
- Percentage of a number - Calculate what percentage of a number is (e.g., 15% of 200)
- Decimal to percentage - Convert a decimal to a percentage (e.g., 0.15 to 15%)
- Percentage change - Calculate the percentage increase or decrease between two values
- Percentage difference - Find the relative difference between two values as a percentage
Percentage change and percentage difference are not the same. Percentage change considers direction (increase/decrease), while percentage difference is always positive, showing the relative difference between values.
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Calculation History
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Common Percentage Facts
- 50% means half of a value
- A 100% increase means the value has doubled
- A 50% decrease means the value is halved
- To add 15% to a value, multiply by 1.15