Coupon Stack
Apply a percentage coupon and a fixed coupon to one purchase.
About Coupon Stack
A fixed dollar-off coupon is applied after a percentage coupon, so the order of application affects the final price. Retailers often apply percentage discounts before fixed coupons, so the total saving depends on how the two coupons stack.
Formula
Coupon Stack
Final price = (original x (1 - percent coupon)) - fixed coupon
- fixed coupon
- A flat amount taken off after the percent coupon
Worked example
With the default values below, Coupon Stack returns Final Price of $50.00. Change any input above and every figure here is recalculated in your browser.
Inputs used
- Original price
- 75
- Percent couponaccepts 0–100 %
- 20 %
- Fixed dollar-off coupon
- 10
Results
- Final Price
- $50.00
- Total Saved
- $25.00
- Overall Discount
- 33.33%
Step by step
- 1Values used
- 2Coupon Stack
- 3Final Price= 50.00
- 4Total Saved= 25.00
- 5Overall Discount= 33.33
Assumptions and limits
- The result is derived only from the 3 inputs listed above. Anything not among them is not part of the calculation.
- In particular, this calculator does not take inflation, tax, fees or charges or compounding frequency into account.
- Figures are rounded for display to 2 decimal places, so totals built from several rounded parts can differ slightly from the unrounded arithmetic.
How these calculators are built and tested is described on the Methodology page. If a figure looks wrong, please report it.
Frequently Asked Questions
How is Coupon Stack calculated?
Final price = (original x (1 - percent coupon)) - fixed coupon A fixed dollar-off coupon is applied after a percentage coupon, so the order of application affects the final price.
Why does Coupon Stack matter?
Retailers often apply percentage discounts before fixed coupons, so the total saving depends on how the two coupons stack.
What values do I need to enter?
This calculator takes 3 inputs: Original price, Percent coupon, Fixed dollar-off coupon. The pre-filled defaults are a realistic starting point — replace them with figures from your own environment for a result you can act on.