Percentage Calculator
Solve common percentage questions: find a percentage of a value, compare a part to a whole, or measure a percentage change.
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Your result
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Worked example
Sample inputs
- What would you like to calculate?
- What is X% of Y?
- First value
- 15
- Second value
- 240
Percentage value: 36
- Percentage: 15%
- Base value: 240
How this percentage calculator works
Choose a question type. The calculator uses the standard percentage ratio and, for percentage change, divides the difference by the original value.
Frequently asked questions
How do I calculate X% of Y?
Select “What is X% of Y?” and enter X as the first value and Y as the second. The result is X ÷ 100 × Y.
How is percentage change different from percentage points?
Percentage change is relative to the starting value. Percentage points are the direct subtraction of two percentages.