How to use this calculator
- Enter or choose original price.
- Enter or choose discount.
- Enter or choose extra discount (optional).
- The price after discount updates as you type. Use Copy result or Share to keep it.
Formula
Final = Price × (1 − d₁) × (1 − d₂)
- d₁
- first discount as a decimal
- d₂
- extra discount as a decimal (0 if none)
Worked example
- After 20% off: 200 × 0.8 = 160.
- Extra 10% off: 160 × 0.9 = 144.
- Saved = 200 − 144 = 56, which is 28% of 200.
20% + 10% off ₹200 brings the price to ₹144, an effective 28% discount.
What the result means
The order of two percentage discounts does not matter, but they never simply add up. A flat amount off (for example ₹50) gives a different result depending on whether it is applied before or after the percentage.
Assumptions and limits
- Discounts are percentages applied one after the other.
- Sales tax, GST or VAT is not added.
Questions
How do I find the original price from a sale price?
Divide the sale price by (1 − discount). A ₹144 price after 28% off was 144 ÷ 0.72 = ₹200.