Find
Calculate what percentage one number is of another
Increase
Calculate the new value after increasing a number by a percentage
Decrease
Calculate the new value after decreasing a number by a percentage
Difference
Calculate the percentage change between two values
Percentage Increase Calculator
Calculate the new value after increasing a number by a percentage. Perfect for price increases, salary raises, and growth calculations.
Formula
New Value = V + (V × X / 100)Result
Enter a value and percentage to see the result.
How to increase a number by a percentage
Two inputs, two answers: the amount added and the new total.
- 01
Enter the starting value
This is the figure before the increase: your current salary, the cost price of a product, or this year's rent. The increase is always worked out on this number.
- 02
Enter the percentage to add
Type 10 for a 10% rise. Decimals such as 3.75 work, and so do values over 100. Results show up to four decimal places.
- 03
Read the amount added and the new total
The tool shows the increase on its own (value × rate ÷ 100) and the new value (value + increase). A ₹12,00,000 salary with an 8.5% hike adds ₹1,02,000, for ₹13,02,000.
Multipliers, and the cut that takes you back
Every percentage increase is the same as multiplying by one number. A 15% rise means × 1.15. That's handy in a spreadsheet, and it shows why going back down needs a smaller percentage: the cut is taken from the bigger, increased number.
| Increase | Multiply by | Decrease that undoes it |
|---|---|---|
| 5% | 1.05 | 4.76% |
| 10% | 1.10 | 9.09% |
| 15% | 1.15 | 13.04% |
| 20% | 1.20 | 16.67% |
| 25% | 1.25 | 20% |
| 50% | 1.50 | 33.33% |
| 100% | 2.00 | 50% |
| 200% | 3.00 | 66.67% |
The undo column is increase ÷ (100 + increase). So if a supplier raises a price by 25% and later offers "20% off", you're back exactly where you started, not 5% ahead.
Markup is not margin
This one costs shopkeepers real money. Say an item costs you ₹600 and you add a 40% markup. The selling price is ₹840 and your profit is ₹240. But as a share of the selling price, that profit is only 28.57%. That's your margin, and it's the figure accountants and most pricing advice talk about.
If you want a 40% margin, divide the cost by 0.6 instead: ₹600 ÷ 0.6 = ₹1,000. That's a 66.67% markup. Use this calculator for markup on cost; for a target margin, divide by (1 − margin ÷ 100).
Yearly increases compound
Repeated rises build on each other. A ₹50,000 monthly salary that rises 8% a year for five years ends at ₹73,466, not the ₹70,000 you'd get by adding 5 × 8% = 40%. To work it out here, run the increase once, then paste the new value back in as the starting value for the next year.
Percentage points are a separate trap. If a loan rate moves from 6% to 7%, that's a rise of 1 percentage point but a 16.67% increase in the rate itself. News reports mix the two up often, so check which one is meant.
Where a percentage increase comes up
Checking a salary hike letter
Enter your current CTC and the hike percentage to confirm the new figure on the letter, then compare it with the percentage you negotiated.
Rent escalation clauses
A lease with 5% yearly escalation on ₹35,000 a month goes to ₹36,750 in year two. Run it again for each later year.
Adding tax to a base price
Adding 18% GST to ₹2,400 gives ₹432 of tax and a total of ₹2,832. For GST splits and reverse calculations, the GST calculator is quicker.
Frequently asked questions
Related percentage and money tools
Percentage Decrease Calculator
Take a percentage off a value, such as a sale discount.
Percentage Change Calculator
Find the rise or fall between an old and a new value.
GST Calculator
Add GST to a base price or take it out of a total.
Compound Interest Calculator
Project growth over many years at a fixed rate.