Categories Capitol Riot Amazon Wholesale – What are good margins for my FBA / FBM … – Reddit Post author By Post date October 16, 2023 Spread the loveSome folks use ROI formula (ROI=profit / initial investment). So, if you purchase your product for $30 and it is sold on Amazon for $100 (assuming high FBA, referral fees) where you make $14 in profits (i.e. 14% margin), your ROI is $14 / $30 = 46%. Spread the love