How this calculation works
Apply sequential coupon discounts; sequential is not additive.
Worked starting inputs
Example inputs: Price = 100.0, Cost = 40.0, Coupon Pct = 10.0, Second Coupon Pct = 5.0, Fees Pct = 10.0. Expected result: Stacked sale price: $85.50, Discount effective: 14.5%. These are illustrative numbers, not market rates. Change a value to compare scenarios; download the result if useful.
Assumptions and limitations
Manual estimates depend on your data and assumptions.
Every result depends on the entered values. The tool does not fetch marketplace fees, infer current exchange rates or verify supplier policies. It is informational, not tax or financial advice.