Last month you were doing $45,000 in Amazon sales. Your main product ranked #3 for its primary keyword. This month you're doing $18,000. Same product. Same listing. Same ad budget. Your ranking dropped from #3 to #47. You check Amazon Seller Central for violations. Nothing. Account health? Perfect. Competitor launches? None. Pricing? Unchanged. What happened? Amazon changed the algorithm. Again. Welcome to the most frustrating reality of selling on Amazon: Amazon's search ran