% Percentage Calculator
Solve any percentage problem instantly. Pick a mode below.
What is X% of Y?
Example: 25% of 200 = 50
Result
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X is what % of Y?
Example: 50 is 25% of 200
Result
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Percentage Increase
Example: From 80 to 100 = 25% increase
Percentage Change
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Percentage Decrease
Example: From 200 to 150 = 25% decrease
Percentage Change
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Add or Subtract a Percentage
Example: 200 + 15% = 230 | 200 - 15% = 170
Result
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Reverse Percentage (Find Original)
Example: 120 after 20% increase → original was 100
Original Value
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📖 About Percentage Calculator
Solve any percentage problem with six dedicated calculation modes. Each mode includes step-by-step explanations.
- ✓ Six calculation modes for every percentage scenario
- ✓ Step-by-step explanation toggle
- ✓ Adjustable decimal precision: 0, 2, 3, or 4 places
- ✓ Calculation history in localStorage
- ✓ One-click copy for results