About This Tool
This Percentage Calculator helps you solve the most common percentage problems instantly. Whether you need to find a discount, calculate exam marks, compare prices or track growth, this tool makes it simple and fast.
How To Use
- Select the type of calculation from the tabs above
- Enter your numbers in the fields
- Click Calculate to get your answer instantly
What Can You Calculate?
- % of Number — Find what 20% of 500 is (answer: 100)
- What % is it? — Find what percent 50 is of 200 (answer: 25%)
- % Change — Find how much something increased or decreased in percentage
Understanding Percentage Calculations
1. Percentage of a Number
This tells you what a certain percentage of a number equals. For example,
to find a 20% discount on a 500 rupee item, the calculation is
(20 ÷ 100) × 500 = 100. This is useful for discounts, tips, taxes and
finding a portion of any total amount.
2. What Percent One Number Is of Another
This tells you how much one number represents as a percentage of another.
For example, if you scored 50 marks out of 200, the calculation is
(50 ÷ 200) × 100 = 25%. This is useful for exam results, survey responses
and comparing two values.
3. Percentage Increase or Decrease
This tells you how much a value has grown or shrunk between two numbers.
For example, if a price changed from 400 to 500, the calculation is
((500 − 400) ÷ 400) × 100 = 25% increase. This is useful for tracking
salary raises, business growth, price changes and inflation.
Frequently Asked Questions
Yes, this tool is completely free to use with no limits.
Yes, use the "% of Number" tab to find discount amounts instantly.
Yes, this tool works perfectly on both mobile and desktop devices.