How to use the discount calculator
- Enter the original price (or MRP) and the main discount %.
- If the sale says "extra 10% off", add it – it's applied to the already-discounted price.
- Add a coupon (a flat ₹ amount off) and a bank offer (a % off, often with a maximum cap like "10% up to ₹1,500"), if you have them.
- See the final price, how much you save, and your true total discount.
The order used is: main discount → extra discount → coupon → bank offer, which is how most online sales apply them. Check the offer terms, as some stores apply coupons or bank offers in a different order.
Why "40% + 10% off" isn't 50% off
An extra discount is taken from the already reduced price, not from the original. On a ₹2,000 item:
- 40% off: ₹2,000 → ₹1,200.
- Extra 10% off ₹1,200: −₹120 → ₹1,080.
- Total saving ₹920, which is 46%, not 50%.
The quick formula for stacked discounts is Total discount = 1 − (1 − d₁) × (1 − d₂). So 50% + 20% = 1 − 0.5 × 0.8 = 60%, and 30% + 10% = 37%. Our guide on sale maths and stacked discounts has more examples, including "buy one get one" offers.
Finding the real discount
Use the second calculator when you only know the original and sale prices: Discount % = (Original − Sale price) ÷ Original × 100. For example, ₹1,500 reduced to ₹999 is a 33.4% discount, saving ₹501.
Shopping tips for big sales
- Check the usual price, not just the MRP. Prices are sometimes raised before a sale so the "% off" looks bigger.
- Read bank offer caps. "10% off up to ₹1,500" gives the full 10% only on purchases up to ₹15,000.
- Instant discount vs cashback: instant discounts reduce what you pay today; cashback arrives later and may come as wallet credit or points.
- Count delivery and convenience fees, which can eat into small savings.
- Remember MRP includes GST in India – a shop can't add GST on top of MRP.
Frequently asked questions
How do I calculate a discount?
Multiply the price by the discount percentage and divide by 100 to get the amount off, then subtract it from the price. For example, 40% off ₹2,000 is ₹800 off, so you pay ₹1,200.
Is 50% + 20% off the same as 70% off?
No. The extra 20% applies to the already-halved price, so the total discount is 60%, not 70%.
How do I find the discount percentage from the sale price?
Subtract the sale price from the original price, divide by the original price, and multiply by 100. ₹1,500 to ₹999 is about 33.4% off.
How do bank offers with a maximum cap work?
The bank discount is a percentage of your bill, but it can't exceed the cap. With "10% up to ₹1,500", a ₹12,000 bill gets ₹1,200 off, while a ₹30,000 bill gets only ₹1,500 off.