How to use the bundle sale profit calculator
Bundling raises average order value and clears slow-moving stock, but a discount chosen by feel often lifts revenue while quietly shrinking profit. Enter the list price, unit cost and quantity of each item in the bundle, the bundle price, your selling fee rate and the shipping you absorb, and this calculator shows what one set actually leaves behind.
How the numbers are built: unit list prices are multiplied by quantity to give the list total, and the bundle price is subtracted from it to give the discount and discount rate. Unit costs are multiplied by quantity the same way. The selling fee is the bundle price multiplied by the fee rate, and net profit per set is the bundle price minus total cost, selling fee and shipping. Net margin is that profit divided by the bundle price.
Expected total net profit multiplies the net profit per set shown on screen (rounded to cents) by the number of sets, so multiplying the two displayed figures by hand gives the same answer. Marketplace fee rates and shipping costs vary by channel and contract, so use the figures from your own settlement statement rather than a typical rate.
This is a planning tool based only on the values you enter. Sales tax, returns, coupon funding and packaging are not included. Written as of September 2026.
Frequently asked questions
There is no single answer, but a useful guardrail is keeping the net margin per set close to what the items earn when sold individually. Raise the discount step by step here and watch where the net margin drops below your target.
No. The calculator uses the prices and costs exactly as entered, so enter everything on the same basis โ either all tax-exclusive or all tax-inclusive โ and read the result on that same basis.