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Discount Calculator

Use this simple Discount Calculator to quickly find the discount amount and final price after applying a discount percentage to any amount.

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Discount Calculator — Find the Exact Price After Discount and How Much You Save

There's a moment every shopper knows: you see a "40% off" sticker during a sale and quickly try to do the mental math — is this ₹3,499 item actually a good deal at 40% off? This Discount Calculator gives you the instant answer. Enter the original price and the discount percentage, and immediately see the discount amount saved and the final price you pay. No mental arithmetic, no rounding guesses — just the exact numbers.

For retailers and business owners, this calculator works equally well in reverse: test different discount levels to see how they affect your realised price, compare promotional offers, and quickly communicate deal pricing to customers or your sales team. Whether it's a 5% bulk discount for a wholesale buyer or a 70% clearance sale, the calculation is instant.

The Discount Formula — Simple but Powerful

  • Discount Amount = Original Price × Discount % ÷ 100
  • Final Price = Original Price − Discount Amount
  • Alternatively: Final Price = Original Price × (1 − Discount % ÷ 100)

Example 1: Smartphone MRP ₹28,000, discount 15%. Discount = ₹28,000 × 15 ÷ 100 = ₹4,200. Final price = ₹23,800. You save ₹4,200.

Example 2: Annual subscription ₹4,800, discount 33.3%. Discount = ₹4,800 × 33.3 ÷ 100 = ₹1,598.40. Final price = ₹3,201.60 — effectively paying for 8 months instead of 12.

The formula works for any amount — products, services, subscriptions, rentals, professional fees, or any transaction where a percentage reduction applies.

Stacked Discounts — How Sequential Discounts Actually Work

"30% off + additional 20% off" sounds like 50% — but it isn't. Stacked discounts are applied sequentially, each on the already-reduced price:

  • Original price: ₹10,000
  • After 30% discount: ₹10,000 × 0.70 = ₹7,000
  • After additional 20% discount on ₹7,000: ₹7,000 × 0.80 = ₹5,600
  • Total effective discount: ₹4,400 = 44%, not 50%

The combined effective discount for two sequential discounts d1 and d2 is: Effective Discount = 100 − (100 − d1) × (100 − d2) ÷ 100. For 30% and 20%: 100 − 70 × 80 ÷ 100 = 100 − 56 = 44%. To calculate stacked discounts using this tool, run the first discount, note the final price, enter it as the new original price, then apply the second discount.

Finding the Original Price When You Know the Discounted Price

Sometimes you know the sale price and the discount but need the original MRP — useful when comparing whether a "sale price" is genuinely discounted:

  • Original Price = Sale Price ÷ (1 − Discount % ÷ 100)
  • Example: Sale price ₹6,300, discount 30%. Original = ₹6,300 ÷ 0.70 = ₹9,000.

This reverse calculation exposes a common retail trick: if the "original price" on the tag doesn't match this reverse calculation, the stated discount percentage is inflated. Use this check during major sale events — the "original price" listed is sometimes an artificial MRP that was never the actual selling price.

Finding the Discount Percentage When You Know Both Prices

If you want to find what percentage discount a seller is actually offering (e.g., comparing a ₹1,200 product now selling at ₹850):

  • Discount % = (Original Price − Sale Price) ÷ Original Price × 100
  • Example: (₹1,200 − ₹850) ÷ ₹1,200 × 100 = ₹350 ÷ ₹1,200 × 100 = 29.2% discount

This is particularly useful for comparing offers across platforms — Amazon might show "₹200 off" while Flipkart shows "18% off" on the same item at different MRPs. Calculating the actual discount percentage on the effective price lets you compare apples to apples.

GST and Discounts — What Gets Taxed?

For GST-registered businesses, GST is charged on the post-discount price (the actual transaction value), not the original MRP. If a product with MRP ₹1,000 (inclusive of 18% GST) is sold at 20% discount (₹800):

  • Post-discount price: ₹800 (GST-inclusive)
  • GST base: ₹800 × 100 ÷ 118 = ₹677.97
  • GST (18%): ₹122.03

The seller collects and remits GST only on the ₹800 transaction, not on the original ₹1,000 MRP. Pre-sale promotional discounts (like "buy 3 get 1 free") that are disclosed upfront and passed to the customer reduce the taxable value. Post-sale discounts (like year-end volume discounts to dealers) require a credit note with GST adjustment. Always consult GST guidelines or your tax advisor for complex promotional pricing structures.

Frequently Asked Questions About Discounts

Yes — for a single straightforward 50% discount, you pay exactly half: ₹2,000 × 50% = ₹1,000 discount, final price ₹1,000. Where confusion arises is with stacked discounts ("50% off + 10% extra"): the second discount applies to the already-reduced price, so you'd pay ₹1,000 × 0.90 = ₹900, not ₹800. The effective combined discount is 55%, not 60%.
Always compare the final absolute price (post-discount), not the discount percentage. A 40% discount off ₹2,000 (final: ₹1,200) is worse than a 20% discount off ₹1,300 (final: ₹1,040) for the same product. Retailers sometimes inflate MRP to make a modest discount look larger — the only reliable comparison is the actual amount you pay. Use this calculator to compute the final price from each offer and directly compare.
There is no legal cap on the discount percentage a retailer can offer. However, selling below cost (predatory pricing) by dominant players can attract scrutiny under the Competition Act, 2002. For MRP-labelled products, the sale price cannot exceed the MRP printed on the package — but it can be any amount below MRP, including zero (free giveaways). E-commerce platforms are additionally regulated by the Consumer Protection (E-Commerce) Rules, 2020, which require transparent pricing and discount disclosures.
A trade discount is offered at the time of sale to a specific class of buyer (e.g., retailer, dealer, bulk buyer) — it is deducted from the list price before the invoice is raised. The invoice shows only the net price; the trade discount doesn't appear in books. A cash discount is offered for early payment of an invoice — e.g., "2/10, net 30" means 2% off if paid within 10 days. Cash discounts appear in books as an expense (for the seller) or income (for the buyer). For GST purposes, trade discounts reduce taxable value; cash discounts given after supply require a credit note.
Economically similar but operationally different. A discount reduces the upfront price immediately. Cashback credits an amount back to your wallet, bank, or card after the transaction — often with conditions (minimum spend, validity period, withdrawal limits). For income tax purposes, cashback received by a consumer is generally not taxable as it's considered a partial refund of purchase price, not income. However, for businesses receiving cashback on purchases, it may need to be treated as a reduction in purchase cost.
A business starts selling at a gross loss when the discounted selling price falls below the cost price. If cost price is ₹700 and MRP is ₹1,000 (30% gross margin), a discount of more than 30% (selling below ₹700) means selling at a gross loss. In practice, the threshold must also include overhead allocations — if total cost per unit (including operating expenses) is ₹850, any discount beyond 15% results in a net loss even though it's above gross cost. Use our Profit & Loss Calculator to verify margin at any discounted price.
Major e-commerce festive sales (Amazon Great Indian Festival, Flipkart Big Billion Days, etc.) combine multiple discount layers: seller discount on MRP, bank card cashback (e.g., 10% extra for SBI/HDFC cardholders), exchange offers, and EMI interest waivers. The "total effective discount" shown is usually the sum of all these components, but each has separate terms. The bank cashback may require same-day redemption; exchange offers need a working device; EMI waivers are only relevant if you planned to use EMI. Always calculate the final cash price (excluding exchange value) using this calculator and compare it with other platforms before assuming the sale price is the best available.


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