How to Calculate Discount Percentage
Discount % = ((Original Price − Sale Price) / Original Price) × 100. For example, if an item originally costs ₹1,000 and is now ₹750, the discount = ((1000-750)/1000) × 100 = 25%.
How to Find the Sale Price After Discount
Sale Price = Original Price × (1 − Discount/100). For a 30% discount on ₹500: Sale Price = 500 × 0.70 = ₹350. You save ₹150.
Common Discount Scenarios
- Amazon/Flipkart sales: Compare MRP vs offer price to find true discount
- Retail shopping: Check if "50% off" is calculated on original or inflated MRP
- GST calculation: Find the pre-GST price from the final price
- Cashback offers: Calculate net price after cashback and discount
- Wholesale buying: Determine trade discount on bulk orders
Stacked Discounts — How to Calculate
For multiple discounts (e.g., 20% then 10%): First discount gives ₹800 on ₹1,000. Second 10% on ₹800 = ₹720. The combined discount is NOT 30% but 28%. Always calculate step by step.
Frequently Asked Questions
How do I find the original price after a discount?
Original Price = Sale Price / (1 − Discount/100). If the sale price is ₹600 after 25% off: Original = 600 / 0.75 = ₹800.
What is the difference between discount and cashback?
Discount is applied directly to the price at the point of sale. Cashback is returned to you after purchase, often as credit or bank transfer.
How is GST calculated on discounted prices?
GST is calculated on the transaction value (price after discount), not the MRP. So if you buy at ₹700 after discount, GST applies to ₹700.
What percentage off is ₹200 on ₹800?
Use Mode 2: 200 is what % of 800 = 25%. The discount is 25%.
Is 50% off the same as buy-one-get-one-free?
Mathematically yes — in both cases you get 2 items for the price of 1, which equals 50% off per item.