/ /Marketplace Profit Calculator
Marketplace Profit Calculator
Full per-listing profit on any marketplace: revenue less product cost, percentage fees, and per-unit shipping — with margin and monthly profit at volume.
Listing Inputs
Selling Price ($)
Units per Month
Product Cost per Unit ($)
Marketplace Fee (%) Amazon 8-15%, eBay 13.25%, Etsy 6.5%, Walmart 6-20%
Shipping per Unit ($)
Marketplace Profit
Revenue (400 units)$24000.00
Fee / Unit (15.0%)-$9.00
Profit / Unit$24.00 (40.0%)
Monthly Profit$9600.00
Listing verdict: Each sale nets $24.00 (40.0%) — $9600.00/month at volume. List with confidence and test higher volume.
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Authoritative References
Frequently Asked Questions
How is marketplace profit calculated?
Profit = (Price - Product Cost - Price x Fee Percent - Shipping) x Units. A $60 price with $22 cost, 15% fee, and $5 shipping nets $24 per unit.
What marketplace fee should I assume?
Amazon 8-15% by category, eBay 13.25% + $0.30, Etsy 6.5% + $0.20 + 3% processing, Walmart 6-20%. Always use your exact category rate.
What margin is healthy per marketplace listing?
20%+ after all variable costs keeps listings resilient to fee hikes and returns. Below 10%, one policy change erases the listing.
Should ads count in listing profit?
Yes for TACOS-aware decisions: subtract ad spend per unit alongside fees. Rank listings by profit after ads, not revenue.
When should I delist from a marketplace?
When contribution stays negative after a price test and fee-category check, or when Buy Box suppression keeps volume below break-even for 60+ days.