Percentage Increase Calculator
See by what percentage a price, salary, score or count has gone up. Or pick 'Increase a number by %' to add a percentage.
- Nothing you type is stored
- Free
- No signup
Percentage increase
20%
Increase- Difference
- 50
- Change (with sign)
- 20%
- Multiplier
- 1.2 ×
Show working
- 300 − 250 = 50
- 50 ÷ 250 = 0.2
- 0.2 × 100 = 20%
How to use
- Type the old value and the new, higher value.
- Read the percentage increase and the amount it went up by.
- To add a percentage instead (for example a 10% hike), choose 'Increase a number by %' from the list.
Good to know
Percentage increase = (new − old) ÷ old × 100. If your salary goes from ₹30,000 to ₹33,600 a month, the increase is ₹3,600, and 3,600 ÷ 30,000 × 100 = 12%.
To increase a number by a percentage, multiply by (1 + percentage ÷ 100). A 12% hike on ₹30,000 is 30,000 × 1.12 = ₹33,600. Several increases multiply: 10% one year and 10% the next is 1.1 × 1.1 = 1.21, a 21% total rise, not 20%.
If the new value is lower than the old one, the calculator shows a percentage decrease instead and marks it clearly. Increases are always measured from the original value, which is why a 50% rise followed by a 50% fall does not bring you back to the start.
Questions
How do I calculate a salary hike percentage?
Subtract the old salary from the new one, divide by the old salary and multiply by 100. ₹25,000 to ₹28,000: 3,000 ÷ 25,000 × 100 = 12%.
How do I add 10% to a number?
Multiply by 1.10. For example 450 × 1.10 = 495. Choose 'Increase a number by %' to do it here.
What is a 100% increase?
The value has doubled. A 200% increase means it has tripled.
Is a price rise from ₹80 to ₹100 a 20% or 25% increase?
25%, because the increase of ₹20 is compared with the old price of ₹80. It would be a 20% decrease going from ₹100 back to ₹80.
How do I find the original price before an increase?
Divide the new price by (1 + rise ÷ 100). After a 12% increase to ₹5,600, the original was 5,600 ÷ 1.12 = ₹5,000. Use the 'Value before a % change' mode.