Discount Calculator

Find the sale price after one or two discounts — and see why 20% + 10% is not 30%.

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<p style="font-size:12px"><a href="https://rebota.in/tools/discount-calculator">Discount Calculator</a> by Rebota</p>

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How to use the Discount Calculator

Enter the original (list or MRP) price.
Enter the discount percentage.
If there is a second discount (coupon, extra off), enter it too.
Read the final price and total savings.

Formula used

Final price = Price × (1 − D1) × (1 − D2)

Effective discount = 1 − (1 − D1) × (1 − D2)

Example: 20% then 10% = 1 − 0.8 × 0.9 = 28% off, not 30%.

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Discount Calculator — FAQs

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. 20% off ₹2,000 is ₹400, so you pay ₹1,600.

Is 20% + 10% the same as 30% off?▾

No. The second discount applies to the already reduced price, so the total is 28%.

Is GST charged before or after discount?▾

In India, a discount shown on the invoice at the time of sale reduces the taxable value, so GST is charged on the discounted price.

How much can I discount and still profit?▾

Your discount must be smaller than your margin. With a 30% margin, a 30% discount leaves zero profit — use the profit margin calculator to check.

How to use the Discount Calculator

Formula used

Discount Calculator — FAQs

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