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Discount Calculator
A discount calculator works out what you will actually pay after a sale offer — and what you truly save. It handles a single percentage off, stacked offers like "30% + extra 10%", and the reverse question: given the MRP and the selling price, what is the real percentage off?
Step-by-step breakdown
| Step | Amount |
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How to use this discount calculator
- Pick what you want to work out at the top — a single discount, two stacked discounts, or the discount percentage hidden inside a price pair.
- Enter the MRP (the printed or original price).
- Enter the discount percentage — or, in the third mode, the selling price instead.
- Read the step-by-step breakdown: every reduction is shown separately, so you can verify an offer line by line before you pay.
How discounts are calculated
A discount is a percentage taken off the price. The whole calculation rests on one formula:
Stacked offers — "50% off + extra 20% off" — are where shoppers get caught. The second percentage comes off the already-reduced price, not the original MRP. So 50% + 20% is not 70% off: ₹2,000 first falls to ₹1,000, then 20% off ₹1,000 leaves ₹800 — an effective discount of 60%. The general rule:
The third mode runs the maths backwards: given the MRP and the selling price, it finds the true percentage off — useful when a seller quotes final prices and you want to compare the actual offer with competing stores.
Worked example
A jacket has an MRP of ₹2,000 and a 30% discount:
- Price after discount: ₹2,000 × (1 − 0.30) = ₹1,400
- You save: ₹2,000 − ₹1,400 = ₹600
Now suppose the store adds "extra 10% off" at billing. The extra 10% applies to ₹1,400, not ₹2,000: the final price is ₹1,400 × 0.90 = ₹1,260, the total saving is ₹740, and the effective discount is 37% — not the 40% the banner suggests. And running it backwards: an MRP of ₹2,000 with a selling price of ₹1,400 is exactly a 30% discount. All three cases are the three modes of the calculator above.
Shopping tips that save real money
- Check the MRP itself. Some sellers quietly inflate the "original price" before a sale. Compare the final price across stores, not the percentage.
- GST is charged on the discounted price. For most goods, tax applies to what you actually pay after discount — so a genuine discount also lowers the tax a little.
- Stack wisely. A bank-card offer on top of a store sale is a stacked discount — use the second mode to see your true saving before deciding the offer is generous.
- Coupons with caps: "20% off up to ₹300" stops helping beyond a ₹1,500 bill. The breakdown table shows when a cap changes the answer.
Frequently asked questions
How do I calculate a discount percentage?
Divide the amount saved by the original price (MRP) and multiply by 100. For example, if an item falls from ₹2,000 to ₹1,400, you save ₹600, and ₹600 ÷ ₹2,000 × 100 = 30% off. The third mode of this calculator does this in reverse automatically.
Is 50% off plus an extra 20% off the same as 70% off?
No. The second discount applies to the already-reduced price. On ₹2,000, 50% off gives ₹1,000, and a further 20% off that gives ₹800 — a total saving of 60%, not 70%. Stacked discounts always add up to less than the sum of the two percentages.
What is the formula for the final price after a discount?
Final price = MRP × (1 − discount% ÷ 100). At 30% off an MRP of ₹2,000, the final price is ₹2,000 × 0.70 = ₹1,400. The amount you save is simply MRP minus the final price.
Is GST charged on the price before or after discount?
GST is charged on the transaction value — the price actually paid after a genuine discount shown on the invoice. So a bigger discount slightly reduces the tax as well. Discounts given after the sale, like some cashback offers, may not reduce the taxable value.
How do I find the original price if I know the discounted price and the percentage?
Divide the discounted price by (1 − discount% ÷ 100). If you paid ₹1,400 after 30% off, the MRP was ₹1,400 ÷ 0.70 = ₹2,000. You can check the answer by entering it in the first mode of this calculator.