Find a percentage or percent change.
How to use Percentage calculator
Select percentage of a number, what percent one number is of another, or percentage change between two values. A zero denominator is rejected.
Find a percentage or percent change. Files and saved drafts stay on this device; they are not uploaded to Schoolvisor.
Percentage Calculator
Use this free percentage calculator to solve common percentage questions quickly. Find a percentage of a number, calculate what percent one value is of another, or work out percentage increase and decrease.
It is useful for marks, discounts, price changes, savings, business calculations and everyday maths.
How to use the Percentage Calculator
Choose the calculation that matches your question, enter the numbers and view the result.
You can use the tool to:
- find a percentage of a number;
- calculate what percentage one number is of another;
- calculate percentage increase;
- calculate percentage decrease.
For example, to find 20% of 150, enter 20 and 150. The result is 30.
Common percentage examples
Find a percentage of a number
To find 15% of 200:
15 ÷ 100 × 200 = 30
Find what percentage one number is of another
If you scored 45 marks out of 60:
45 ÷ 60 × 100 = 75%
Calculate percentage increase
If a price rises from 80 to 100:
(100 − 80) ÷ 80 × 100 = 25% increase
When is a percentage calculator useful?
Percentages are used in many daily situations, including exam results, sale prices, tax, tips, budgets, interest, attendance rates and progress tracking.
Always check whether the question asks for a perce