How do I calculate a discount?
Sale price equals the original price times (1 minus discount percent divided by 100), and savings equal original price minus sale price. For stacked offers, each discount applies to the already reduced price, not the original. Enter the price and one or two discounts in FixDoks's Discount Calculator to see sale price, savings and effective discount.
Discount Calculator at a glance
| Inputs | Original price, discount %, optional extra discount, or sale price |
|---|---|
| Output | Sale price, amount saved, effective discount % |
| Processing | In your browser; your files are not uploaded |
| Price | Free |
| Works on | Chrome, Edge, Safari and Firefox on Windows, Mac, Android and iPhone |
How to use Discount Calculator
- Choose Find sale price or Find discount %.
- Enter the original price (MRP).
- Enter the discount percentage, and an extra discount if the offer has one. Or enter the sale price to find the discount.
- Read what you pay, what you save and the effective discount.
How do I calculate a discount?
Sale price = Original price × (1 − Discount ÷ 100)
Amount saved = Original price − Sale price
Worked example
A pair of shoes has an MRP of ₹2,000 with 20% off.
- Discount = 2,000 × 20 ÷ 100 = ₹400
- Sale price = 2,000 − 400 = ₹1,600
Stacked discounts: "20% + extra 10% off"
Online sales often advertise a flat discount plus an extra discount at checkout, or a bank card offer on top. The second discount applies to the already reduced price, not to the MRP, so the two percentages do not simply add up.
- After 20% off: 2,000 × 0.80 = ₹1,600
- After a further 10% off: 1,600 × 0.90 = ₹1,440
- Total saved = ₹560, which is an effective discount of 28%, not 30%
The general rule: effective discount = 1 − (1 − d1) × (1 − d2). Enter both percentages above and the calculator shows the real figure.
How do I find the discount percentage?
If a product marked ₹2,000 is selling for ₹1,499, the discount is (2,000 − 1,499) ÷ 2,000 × 100 = 25.05%. Switch to Find discount % to compare deals where only prices are shown.
Discount vs markup
A shop that buys at ₹1,000 and sells at ₹1,250 has a 25% markup on cost, but its margin on the selling price is 20%. Discounts are always calculated on the selling price or MRP, so a 20% discount on ₹1,250 takes the price back to ₹1,000 and wipes out the profit.
Tips for comparing offers
- Check the MRP. A big percentage off an inflated "original price" may be worse than a small discount elsewhere. Compare the final price you pay.
- Caps on card offers. "10% instant discount up to ₹1,500" means the saving stops growing after ₹15,000. Enter the capped amount as money saved, not the percentage, for large orders.
- Buy one get one. A BOGO offer on two items of the same price is a 50% discount on the pair. "Buy 2 get 1 free" is 33.3% off three items.
- Cashback vs discount. Cashback arrives later and may come as wallet credit with restrictions. An instant discount is money you keep today.
- Tax. In India, MRP includes GST, so the sale price shown in shops already includes tax. In many other countries, sales tax is added at the till.
Shopkeepers can use the same tool the other way round: to find the price to charge after offering a customer a set percentage off.