Basic discount
Discount amount is original × rate, and final price is original minus that discount.
062 · UNIT & CALCULATOR
Discount Price Calculator
Calculate savings, final price, and effective discount from an original price, including sequential additional discounts.
LOCALCALCULATE IN YOUR BROWSER
DISCOUNT WORKSPACE
Enter a price and discount conditions
Prices and discount rates stay in this browser and are not sent to or stored on a server.
Currency is for display only; no exchange-rate conversion is performed.
Final Price
₩80,000Discount Amount₩20,000
Total Savings₩20,000
Effective Discount20%
Sequential Breakdown
01
20%
−₩20,000Before ₩100,000 → After ₩80,000
Formula
× (1 − 20/100)HOW TO USE
How to use
- 01
Enter the original price and discount percentage.
- 02
Review the discount amount and final price instantly.
- 03
Enable Additional Discount to enter a second and optional third discount in order.
- 04
Check the effective discount and sequential breakdown to verify each step.
- 05
Use the top tabs to find an original price or calculate a discount rate when needed.
DISCOUNT GUIDE
Stacked discounts multiply instead of simply adding
Each new discount uses the already discounted price, while total savings and effective discount stay anchored to the original price.Additional discount
20% then 10% applies 10% to the remaining 80%, leaving 72% and an effective 28% discount.
Effective discount
Measure total savings against the original with 1 − final/original.
Find original
Use final ÷ (1 − rate/100) to recover the original price from a sale price and discount.
Find discount
Use (original − final) ÷ original × 100 when original and sale prices are known.
100% exception
A 100% discount makes the final price zero, but reverse-original calculation is undefined because its divisor is zero.
IMPORTANT NOTES
Important notes
- Additional discounts are applied sequentially to the already discounted price, not added together.
- A 30% discount followed by 10% is a 37% effective discount, not 40%.
- At a 100% discount, reverse-original calculation is undefined because the divisor becomes zero.
- Rounding is applied only for display; internal calculation values are preserved.
- Currency selection changes display formatting only and does not convert exchange rates.
- VAT, tax, shipping, fees, and multi-item carts are outside this tool’s scope.
FAQ
Frequently asked questions
01How much do I save with 20% off?+
The discount amount is 20% of the original price, so the final price is 80% of the original.
02Is 30% off plus 10% off equal to 40%?+
No. 100 → 70 → 63, so the effective discount is 37%.
03Can I add the discount percentage back to get the original price?+
No. Reverse it with final price ÷ (1 − discount/100).
04Can I reverse a 100% discount?+
No. The divisor becomes zero, so the original price is undefined.
05Are discount amount and savings the same?+
They are the same for one discount. With stacked discounts, the first-step discount and total savings are different measures.