This episode explores the misconceptions surrounding TACoS (Total Advertising Cost of Sales) within the Amazon ecosystem, emphasizing its nature as a business ratio rather than a pure PPC metric. Against the backdrop of ROAS (Return on Ad Spend) and ACOS (Advertising Cost of Sales), the discussion clarifies that TACoS reflects the relationship between organic sales, paid advertising, and total revenue. More significantly, the podcast addresses the misconception that a declining TACoS always indicates positive performance, illustrating scenarios where reduced ad spend and improved ACOS can coincide with a loss of overall market share and profit. For instance, maintaining consistent PPC performance while TACoS worsens often points to underlying issues with organic sales, necessitating a shift in focus towards organic optimization strategies. Ultimately, the host advocates for a holistic approach, integrating cost of goods and Amazon fees into the analysis to accurately gauge the impact of PPC on overall profitability, highlighting that a higher TACoS, when coupled with increased organic sales, can drive greater net proceeds and business health.