Discount calculator
Find the price after a discount and how much you save. Handles a second discount on top of the first, such as 20% + 10%.
Runs in your browser. Nothing you enter is uploaded.
What it does
Enter a price and a discount to see what you pay and what you save. If a shop offers an extra discount on the already reduced price, enter it too, and the tool shows the real combined discount.
How to use it
- Enter the original price.
- Enter the discount percentage.
- If there is a further discount on the reduced price, enter it in the extra discount box.
Worked example
₹2,499 with 20% off is ₹1,999.20, a saving of ₹499.80. With an extra 10% off the reduced price, you pay ₹1,799.28. The combined discount is 28%, not 30%.
How it works
Price after discount = price × (1 − discount ÷ 100). A second discount is applied to the reduced price, so two discounts of a% and b% combine to a + b − (a × b ÷ 100) percent. That is always a little less than adding them.
Questions
Why is 20% + 10% not 30%?
The second discount is taken from a smaller price. 10% of the reduced price is less than 10% of the original.
Is GST included?
The tool works on whatever price you enter. In Indian shops the marked price (MRP) already includes taxes.
How do I find the discount percentage from two prices?
Use the percentage calculator and choose percentage change from the old price to the new one.