Discount Calculator
Sale tags show a percentage off, but what you really want to know is the final price and how much you save. This calculator gives both, and it can stack a second discount such as a coupon or card offer on top of the first.
Last reviewed:
- Final price
- ₹1,619.46
- You save
- ₹1,379.54
- Price after first discount
- ₹1,799.40
- Effective total discount
- 46%
- GST or delivery charges are not included. Add them separately if they apply.
You can also work backwards: enter the price you paid and the discount to find the original price.
How to use this calculator
- Choose whether you know the original price or the final price.
- Enter the price and the discount percentage.
- Optionally add an extra discount, which is applied on the reduced price.
- Read the final price, the savings and the effective total discount.
Formula and variables
Price after first discount = Original × (1 − D1 ÷ 100) Final price = Price after first discount × (1 − D2 ÷ 100) Original from final = Final ÷ (1 − D ÷ 100)
- D1 - the first discount percentage.
- D2 - the extra discount percentage, applied on the already reduced price.
- Effective discount - (Original − Final) ÷ Original × 100.
Worked example
A jacket is priced at ₹2,999 with 40% off, and you have a further 10% bank offer.
| Original price | ₹2,999 |
|---|---|
| Discount | 40% |
| Extra discount | 10% |
| Final price | ₹1,619.46 |
| You save | ₹1,379.54 |
| Effective discount | 46% |
- 2,999 × 0.60 = 1,799.40 after the first discount.
- 1,799.40 × 0.90 = 1,619.46 after the extra discount.
- Savings are 2,999 − 1,619.46 = 1,379.54, which is 46% of the original price.
What changes the result
- Stacked discounts. 40% plus 10% is not 50%. The second discount applies to the reduced price, giving 46% in total.
- Order of offers. Percentage discounts give the same total in any order, but flat-amount offers do not.
- Taxes and delivery. GST, shipping or convenience fees may be added after the discount.
- Offer caps. Bank and coupon offers often have a maximum discount amount, which this calculator does not apply.
Benefits and practical uses
- Know the real price before you buy.
- See the true effect of stacked offers.
- Find the original price from a sale price.
Assumptions and limitations
- Both discounts are percentages of the price they apply to.
- Maximum-discount caps, minimum order values and taxes are not modelled.
- Amounts are shown rounded to the nearest paisa.
Frequently asked questions
How do I calculate a discount?
Multiply the price by the discount percentage divided by 100 to get the saving, then subtract it. Or multiply the price by (1 − discount ÷ 100).
How do two discounts combine?
The second discount is taken on the price after the first, so 40% and 10% make 46%, not 50%.
How do I find the original price from the sale price?
Divide the sale price by (1 − discount ÷ 100). A ₹750 price after 25% off was originally ₹1,000.
Does this include GST?
No. If GST applies on the discounted price, add it with the GST calculator.
What is the effective discount?
The total saving as a percentage of the original price after all discounts.
References
Page last reviewed on . This calculator gives estimates for planning only; it is not financial advice and not an offer from any lender.