Advertising Cost of Sales = Ad Spend / Ad Revenue. Lower is better.
Return on Ad Spend = Ad Revenue / Ad Spend. Higher is better.
Cost Per Click = Ad Spend / Clicks. Varies by category and competition.
Click-Through Rate = Clicks / Impressions. Benchmark: 0.3-0.5%.
Join 500,000+ sellers using our free tools to grow their Amazon FBA business.