How to use the Coupon comparison calculator
Enter amount, fixed coupon, and percentage coupon (%). Choose the currency for your inputs and read the result as you change the values.
How it works and formula
Fixed-coupon price = price minus coupon, with a minimum of zero. Percentage-coupon price = price × (1 − rate).
Worked example
| Amount | 100 |
|---|---|
| Fixed coupon | 12 |
| Percentage coupon (%) | 15 |
Result
With fixed coupon $88.00
With percentage coupon $85.00
Choosing your inputs
Enter the eligible subtotal, the fixed coupon amount, and the percentage offer. Compare offers on the same basket and check eligibility, minimum spend, and any cap on the percentage discount.
How to interpret the result
On $100, a $12 coupon leaves $88, while 15% off leaves $85. The better offer can change on a smaller basket. The table shows how changing the percentage affects the two checkout amounts before tax or shipping.
Frequently asked questions
Does this combine the coupons?
Each result is a separate checkout scenario. Use stacked discounts when two percentage offers apply together.
At what subtotal do $12 off and 15% off match?
The two discounts match at $80 because $12 divided by 0.15 is $80, assuming both offers apply in full.