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⚡ 3-Second Reseller ROI Tool

Will It Profit?

Enter your purchase price and target selling price to calculate your exact net profit and ROI across eBay, Poshmark, Mercari, and Depop instantly.

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Instant Platform Profit Breakdown 2026 Fee Rates
eBay Great Deal
Selling Price:$45.00
Est. Platform Fee:$6.26
Buy Cost:$5.00
$27.24
545% ROI
Poshmark Great Deal
Selling Price:$45.00
Platform Fee (20%):$9.00
Buy Cost:$5.00
$31.00
620% ROI
Mercari Great Deal
Selling Price:$45.00
Seller Fee:$0.00
Buy Cost:$5.00
$33.50
670% ROI
Depop Great Deal
Selling Price:$45.00
Payout Fee (3.3%):$1.49
Buy Cost:$5.00
$32.01
640% ROI

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Frequently Asked Questions

How does the 3-second profit calculator work?
Enter what you paid for an item at a thrift store or garage sale along with your expected selling price. The tool automatically factors in 2026 platform fees for eBay, Poshmark, Mercari, and Depop to display your exact net profit and ROI.
Which platform yields the highest net profit for clothing and shoes?
Mercari and Depop currently offer 0% seller fee structures (passing buyer service fees), while eBay and Poshmark offer higher buyer traffic volume. Kamcart allows you to list seamlessly across platforms to maximize profit.