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Discount Calculator

Work out the sale price, the percentage off, or the original price — and see what two stacked discounts really add up to.

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How to use Discount Calculator — Percent Off & Stacked Deals

  1. 1Enter the original price and the discount.
  2. 2Adjust the sliders to see the result update instantly.
  3. 3Read the result, and the year-by-year table underneath.

About Discount Calculator

Most discount questions are one of three sums, and the calculator lets you start from whichever two numbers you actually have. Price plus percentage gives the sale price. Two prices give the percentage — useful when a tag shows both and you want to know whether the markdown is worth the trip. A sale price plus a percentage works back to the original, which is how you check a claimed discount against what the item normally costs.

Stacking is where the arithmetic surprises people, and retailers know it. '30% off, plus an extra 20% at checkout' feels like half price, but the second cut is taken on what is left after the first: ₹2,499 becomes ₹1,749.30, then ₹1,399.44. That is 44% off. Two 50% discounts stacked are 75% off, not 100% — and the order never matters, because multiplying 0.7 by 0.8 gives the same answer either way round. The stacked mode shows each step and then the single equivalent percentage, so you can compare a stacked offer against a flat one honestly.

One caution the maths cannot give you: a discount is only as real as the price it is taken from. 'Was' prices that nothing ever sold at inflate the percentage without lowering the amount you pay, so the number worth comparing across shops is the final price, not the size of the claimed reduction. This tool also stops at the price — tax treatment, delivery charges and coupon exclusions vary by retailer, so treat the figure as what the discount does and the checkout total as what you owe.

Frequently asked questions

How do I calculate a percentage off a price?
Multiply the price by the percentage divided by 100 to get the saving, then subtract it. On ₹2,499 at 30% off, the saving is ₹749.70 and you pay ₹1,749.30. The calculator does this as you drag the slider, so you can see the price move rather than working it out per item.
Why isn't 30% then 20% the same as 50% off?
Because the second discount applies to the already-reduced price, not the original. ₹2,499 less 30% is ₹1,749.30, and 20% off that is ₹1,399.44 — a total saving of ₹1,099.56, which is 44% off, not the ₹1,249.50 a straight 50% would save. The order makes no difference to the result: 20% then 30% lands on the same ₹1,399.44.
How do I find the original price from a sale price?
Divide by (1 − percentage/100). If you paid ₹1,749 after 30% off, the ticket price was ₹1,749 ÷ 0.7 = ₹2,498.57. Adding 30% back onto ₹1,749 gives ₹2,273.70, which is wrong — the percentage was taken off the larger number, so it has to be divided back out.
How do I work out what percentage off a sale is?
Subtract the sale price from the original, divide by the original and multiply by 100. The two-prices mode does it for you and also shows the cash saving. If the sale price is higher than the original the tool says so plainly rather than reporting a negative discount as a deal.
Does it include tax, shipping or coupon exclusions?
No. It works purely on the price you enter. Whether tax is applied before or after the discount, whether shipping is charged on the reduced total, and which items a coupon excludes are all retailer-specific — the honest check is to compare the number here with the final total at checkout.
Is 'buy one get one free' the same as 50% off?
On two identical items, yes — you pay for one and take two, so the pair is 50% off. 'Second item half price' is only 25% off the pair. Either can be modelled here by entering the price of the pair and the percentage that applies to it, which is usually the fairest way to compare a BOGO offer with a straight discount.