Enter the original price and discount percentage. You’ll see the final price, how much you save, and a table showing what you’d pay at every common discount level.
How stacked discounts actually work
Big Billion Day and End of Season Sale love the “extra 10% off” trick. Here is what it actually means.
If a ₹5,000 product has 40% off, the price is ₹3,000. An additional 10% off on ₹3,000 is ₹300, total price ₹2,700. The combined discount looks like 50%, but it’s 46% on the original price.
The math: combined discount = 1 – (1 – d1) × (1 – d2)
For 40% + 10%: 1 – (0.60 × 0.90) = 1 – 0.54 = 46% combined
Retailers know most people add percentages. 30% + 20% feels like 50%. It’s 44%. Not fraud, just arithmetic. Worth calculating before celebrating.
GST on discounted price
This matters for everything from electronics to clothing. GST is applied on the post-discount price, not the MRP.
If a phone MRP is ₹20,000 with 15% discount and 18% GST:
- Discounted price: ₹17,000
- GST at 18%: ₹3,060
- Total: ₹20,060
The GST component is ₹3,060, not ₹3,600 (which would be on MRP). Knowing this matters when you’re comparing prices across stores, one might show MRP-inclusive, another exclusive.
EMI on discounted products
No-cost EMI on sale products sounds great. The discount is real, but “no-cost” EMI usually involves the retailer paying the processing fee upfront. Some schemes add it back into the price. Check the actual monthly amount against the EMI Calculator using the discounted price.
₹17,000 on 12-month no-cost EMI = ₹1,416/month. If the EMI offered is ₹1,500, someone is charging interest somewhere.
When percentage off doesn’t tell the full story
A 70% discount on a ₹499 kurta saves ₹349. A 5% discount on a ₹80,000 laptop saves ₹4,000. The laptop discount with a smaller percentage puts more money back in your pocket.
Always look at the rupee savings, not just the percentage. The table in the calculator shows this immediately, a ₹50,000 item at every common discount level side by side.
Seasonal sale math in India
Typical discount patterns:
- Grocery apps (Blinkit, Zepto): 5–20% on most items, higher on private label
- Fashion (Myntra, Ajio): 40–70% during End of Season, 20–40% otherwise
- Electronics (Flipkart BBD, Amazon Great Indian): 10–30% on most, up to 50% on older models
- Home appliances: 15–25% during festive season
Cross-check against price trackers before trusting a sale label. Prices are sometimes inflated before the sale to create a bigger “discount.”
Related calculators
- Margin Calculator - if you’re the seller calculating your profit
- GST Calculator - add or remove GST from any price
- Percentage Calculator - general percentage math
Sources
- Consumer Protection Act, 2019 — Legal Metrology (Packaged Commodities) Rules: MRP is the maximum price; discount is applied on MRP
- Bureau of Indian Standards — IS 15690: guidelines on pricing and labelling for consumer goods
- GST Council: GST on discounted price = tax on post-discount transaction value (CGST Act 2017, Section 15(3))