Find out how much of your Amazon ad spend bought nothing.
Drop in the Search Term Report you already have. In about three seconds you'll see the share of spend that never produced a sale, the terms that do sell but cost too much, and which campaigns run above your account average on ACOS - the share of a campaign's sales that went on ads.
How to find your report in Seller Central
Seller CentralAdvertisingCampaign ManagerSponsored ads reportsSponsored ProductsSearch term