Understand ACoS, BSR, and when to kill a product.
Amazon takes a huge cut (15-45% depending on category), and FBA fees are opaque. You'll learn ACoS (advertising cost of sale — are your ads profitable?), TACoS (total advertising cost of sale — ad spend as % of revenue), BSR (best seller rank — is this product moving?), and most importantly: gross margin after FBA fees, returns, and ads. You'll understand why a product that shows 40% gross margin on paper might actually lose money, and how to calculate the true profitability that tells you whether to scale or kill a listing.
Part of this AskBiz Academy learning path.
AskBiz Academy
Part of this AskBiz Academy learning path.
AskBiz Academy
Part of this AskBiz Academy learning path.
AskBiz Academy
ROAS measures revenue generated per pound spent on advertising. The essential metric for evaluating paid marketing.
3 min read · Beginner
Landed cost is the true total cost of an imported product including duties, freight, and insurance. Essential for accurate margin calculations.
4 min read · Beginner
Gross margin tells you how much money is left after paying for what you sold. It's one of the most important numbers in any business.
4 min read · Beginner
Inventory turnover measures how many times you sell through your stock in a year. High turnover means efficient capital use; low means dead stock.
3 min read · Intermediate
Refund rate measures the percentage of orders that are returned or refunded. High rates destroy margin — here's how to track and reduce them.
3 min read · Beginner
Conversion rate measures the percentage of visitors who buy. It's the multiplier on all your traffic investment.
3 min read · Beginner
Follow this learning path to master amazon & marketplace selling: margin math.
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