Percentage Calculator
Solve any percentage problem: percent of a number, what percent one value is of another, or percent change.
Result
Enter your numbers above
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Three common percentage problems
This calculator solves the three percentage questions people search for most often: finding a percentage of a number, finding what percent one number is of another, and finding the percent increase or decrease between two values.
The formulas
- X% of Y = (X ÷ 100) × Y
- X is what % of Y = (X ÷ Y) × 100
- Percent change = ((New − Old) ÷ |Old|) × 100
Frequently asked questions
- How do I calculate a discount?
- To find a sale price, calculate X% of the original price, then subtract it from the original price.
- What does percent change mean?
- It measures how much a value has grown or shrunk relative to its starting point, expressed as a percentage.