TACoS (Total Advertising Cost of Sale)

This article defines the Ampd metric 'TACoS'

DEFINITION: A parent product's total advertising cost as a percentage of its total revenue.

Calculated by taking the total ads cost for all variants of the parent product (total ads cost = Amazon Sponsored Product Ads cost + Google Ads cost - Brand Referral Bonus) and dividing by the total revenue for all variants of the parent product.