Percentage Calculator
Calculate percentages quickly and easily. Find what percent one number is of another, calculate percentage increase/decrease, and more.
Calculate Basic Percentage
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What is X% of Y?
What is
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X is what percent of Y?
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Percentage Change (From → To)
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Percentage Change
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Increase or Decrease by Percentage
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Percentage Formulas
X% of Y
Result = Y × (X / 100)
X is what % of Y
% = (X / Y) × 100
Percentage Change
% = ((New - Old) / Old) × 100
Increase/Decrease
Result = Value × (1 ± X/100)
Common Percentage Conversions
| Fraction | Decimal | Percentage |
|---|---|---|
| 1/2 | 0.5 | 50% |
| 1/3 | 0.333... | 33.33% |
| 1/4 | 0.25 | 25% |
| 1/5 | 0.2 | 20% |
| 1/8 | 0.125 | 12.5% |
| 1/10 | 0.1 | 10% |
| 3/4 | 0.75 | 75% |
| 2/3 | 0.666... | 66.67% |