Percentage Calculator
Handle common percentage calculations, including finding a percentage of a number, percentage increase or decrease, and more.
About the Percentage Calculator
A percentage calculator handles common percentage calculations, including finding a percentage of a number, working out percentage increase or decrease, and finding what percentage one number is of another.
Common percentage formulas
- Percentage of a number: (percentage ÷ 100) × number
- Percentage increase: ((new value − original value) ÷ original value) × 100
- What percentage X is of Y: (X ÷ Y) × 100
How to use
1
Choose the type of percentage calculation you need.
2
Enter the relevant numbers into the fields.
3
View the calculated result.
Worked examples
Example: percentage increase
A salary that went from $55,000 to $61,000.
Input
(61,000 − 55,000) ÷ 55,000 × 100
Result
≈ 10.9% increase
Frequently asked questions
How do I calculate a percentage increase?
Subtract the original value from the new value, divide by the original value, then multiply by 100 to get the percentage increase.
What's the difference between percentage change and percentage points?
Percentage change describes a relative change (like a 10% increase), while percentage points describe an absolute difference between two percentages (like going from 20% to 30%, a 10 percentage point change).
Explore more tools in the Calculators category.