How to calculate a discount and the final price

Steps

1. Write down the original price and the discount. Here: ₹2,000 and 25%.
2. Turn the discount into a decimal and subtract it from 1: 1 − 0.25 = 0.75.
3. Multiply the price by that: 2,000 × 0.75 = ₹1,500.
4. For a second discount, multiply again: 1,500 × 0.90 = ₹1,350.
5. Subtract the final price from the original to see what you save: ₹650. Or use the discount calculator.

Two discounts do not add up

A second discount applies to the already reduced price, not to the original. ₹2,000 with 25% then 10% off is ₹1,350, a saving of ₹650 or 32.5% of ₹2,000. Adding 25% and 10% to get 35% would give ₹1,300, which is wrong.

The same holds for bigger offers. ₹1,000 with 40% off and then a further 20% off costs ₹480. You save ₹520, which is 52% overall, not 60%.

Working backwards

If you know the sale price, divide by one minus the discount to find the original. A price of ₹1,500 after 25% off was 1,500 ÷ 0.75 = ₹2,000. This is useful for checking whether a claimed original price is real.

Compare offers fairly

A bigger percentage on a higher price can cost more than a smaller percentage on a lower one, so compare final prices, not the discount figures. Watch for delivery, packing and tax that are added after the discount. Percentage-off and flat-amount-off coupons are best compared by working out the final price of each.