Operational Effectiveness - How well does the company management in some areas of operations

Asset turnover =Sales Revenue / Average Total Assets ( Avg' Total Assets = (Beg Assets+ End Assets) / 2)

Account Receive Turnover =Sales/Average Accounts Receivable ( Average Acct Rec = (Beg AR+ End AR) / 2)

Inventory Turnover = Cost of Goods Sold/ Average Inventories (Average Inventory = (Beg Inv + End Inv) / 2)

https://www.marketbeat.com/stocks/NASDAQ/EBAY/financials/

https://www.marketbeat.com/stocks/NASDAQ/AMZN/financials/

Use data in 2019 vs given formular, calculate Asset turnover , Account Receive Turnover and Inventory Turnover for each company ( Ebay vs Amazon). Then compare, evaluate and analysis specifically for each ratio between two company.