/ /Marketplace Break-Even Calculator
Marketplace Break-Even Calculator
Break-even for marketplace sellers: contribution after product cost, fees, and shipping, then break-even units and revenue on monthly fixed costs with forecast check.
Break-Even Inputs
Monthly Fixed Costs ($) Subscriptions, tools, prep, storage
Selling Price ($)
Unit Product Cost ($)
Marketplace Fee (%)
Shipping per Unit ($)
Forecast Units
Marketplace Break-Even
Contribution / Unit$13.50
Break-Even Units370 units
Break-Even Revenue$18518.52
Forecast Profit (400 units)$400.00
Break-even verdict: Break even at 370 units ($18518.52). Forecast profit is $400.00 — above water: push review velocity to hold rank.
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Authoritative References
Frequently Asked Questions
How is marketplace break-even calculated?
Break-Even Units = Monthly Fixed Costs / (Price - Unit Cost - Fee - Shipping). With $5,000 fixed and $13.50 contribution, break-even is 371 units.
What fixed costs do marketplace sellers forget?
Pro subscriptions, repricers, prep centers, storage overages, returns disposal, and review tools. They total $500-5,000 monthly for serious sellers.
Should ad spend be in break-even?
Separate it: compute organic break-even first, then a TACOS-loaded version with ad cost per unit. Blending hides whether listings or ads are the problem.
How do fee increases move break-even?
Each extra fee point cuts contribution and raises break-even proportionally. A 15% to 16% move on $50 lifts break-even about 4% — reprice or renegotiate cost.
What if contribution is negative?
No volume fixes it — every sale deepens the loss. Raise price, cut cost, shift fulfillment, or exit the SKU on that channel.