Find a calculator ↗Marketplace Order Contribution Calculator
Use this marketplace order contribution calculator to see what one order leaves after variable selling costs. Include product cost, fulfillment, shipping, advertising, and marketplace fees.
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Calculations run in your browser. The tool does not submit entered figures. Dollar amounts use USD.
What is marketplace order contribution?
This calculator estimates what remains from one marketplace order after its entered variable costs. It helps a seller compare pricing, acquisition spending, and fulfillment options before fixed overhead. Contribution differs from net profit because rent, salaries, and other business-level expenses may still need to be covered.
Use the correct fee basis
The percentage fee in this model applies to item revenue plus customer-paid shipping. Marketplaces may use different bases, minimums, tiers, or separate fees. Check the relevant agreement before treating the estimate as an invoice reconciliation.
How to use the marketplace calculator
Enter the net item price and shipping revenue retained by the seller. Add product, fulfillment, outbound shipping, and advertising costs for the same order. Enter the applicable percentage fee, calculate, and compare the contribution with the fixed costs your orders need to support.
- Choose one consistent period or scenario.
- Replace the example values with your own records or clearly labeled assumptions.
- Select Calculate results and review each output alongside the formula below.
- Change one uncertain input at a time to compare a more cautious scenario.
Avoid overlapping fees
Do not enter the same fulfillment or payment charge twice. If several percentage charges use the same revenue base, a combined rate may be useful; charges on different bases need a separate calculation.
Order contribution formula and example
A $100 item with $5 shipping revenue earns $105. A 15% fee costs $15.75. Product cost of $40, fulfillment of $8, shipping of $7, and advertising of $10 add $65. Contribution is $24.25, or 23.10% of revenue. The modeled break-even item price is about $71.47.
Break-even is not a sustainable profit target
The break-even item price covers only the entered variable costs. It does not provide a contribution toward fixed overhead or a profit goal. Use it as a cost checkpoint rather than an automatic selling price.
Compare pricing and channel choices
Test a price discount, a higher advertising cost, or a fulfillment change one at a time. A sales increase is only attractive if the economics and capacity support it. Compare channels using consistent cost and revenue definitions.
What the result excludes
Returns, refunds, taxes, fixed subscriptions, storage, chargebacks, and tiered fees are not automatically included. Use the return processing tool alongside this model when returns materially affect the product’s economics.
Frequently asked questions
Is contribution the same as net profit?
No. Contribution is available to cover fixed costs and then profit. A positive amount per order does not prove the whole business is profitable.
Does the fee apply to shipping revenue?
Yes, in this model. If your marketplace uses a different fee base, calculate the fee separately or use a model that matches the actual terms rather than forcing the wrong percentage.
Should sales tax be included in the price?
Use revenue retained by the business before sales tax collected for remittance. This calculator does not calculate tax or determine marketplace tax obligations.
Can I enter a negative contribution scenario?
Yes. If costs exceed net revenue, the result becomes negative. At those assumptions, each additional similar order reduces the amount available for fixed expenses.
Does the break-even price include advertising?
Yes, the entered per-order advertising amount is included. If acquisition cost changes when price or conversion changes, rerun the scenario with a realistic new amount.
Related tools and categories
Ecommerce Return Processing Cost Calculator
Use this ecommerce return processing cost calculator to estimate the added cost of returned orders. Include reverse shipping, handling, inventory write-downs, and nonrefundable fees.
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