Calculators & Finance tool
Percentage & Discount Calculator
Find the price after a percentage discount followed by a fixed-value coupon.
The percentage discount comes first, then the coupon. The final price cannot fall below zero.
Compare discounted prices
Apply a percentage and a coupon in order
Enter the original price and rate
Use the original price as the base amount and enter the discount percentage. You can read both the percentage amount and the price after that discount.
Add the coupon as an amount
Enter a fixed coupon value in KRW if you have one. This is not a second percentage field; it subtracts from the already discounted price.
Compare the final price and savings
Read the final price, saved amount and effective discount together. A different coupon changes the overall saving even when the advertised percentage is the same.
A worked example
Twenty percent off plus a 5,000 KRW coupon
- Start with
- 100,000 KRW base / 20% discount / 5,000 KRW coupon
- Check the result
- 80,000 KRW after the percentage, 75,000 KRW final, 25,000 KRW saved and 25% effective discount
Calculated as 100,000 × 0.8 − 5,000. A retailer that applies the coupon first may produce a different result.