the note says, :Cost of sales primarily consists of the purchase price of consumer products, inbound and outbound shipping cost, including cost related to sortation and delivery centers and where we are the transportation service provider, and digital media content costc where we record revenue gross, including video and music. Shipping costs to receive products from our suppliersa are included in our inventory, and recognized as cost of sales upon sale of product to our customer. Payments processing and related transaction costs, including those associated with seller transactions, are classified in "Fulfillment" on our consolidated statements of operations."