MarginLog
eBay says you made $50. MarginLog says $31. Now you know.
What is MarginLog?
Resellers on eBay, Poshmark, Mercari, and 4 other platforms constantly underestimate how much fees eat into profit. MarginLog lets you log a sale in 30 seconds — sale price, what you paid, shipping — and shows your true net profit after every platform fee, automatically. Free during beta. No card required. Also includes free profit calculators for all 7 platforms — no signup needed.
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