Early in 2022, Vaughn Manufacturing switched to a just-in-time inventory system. Its sales and inventory amounts for 2021 and 2022 are shown below. 2021 2022 Sales revenue $3,110,000 $3,920,000 Cost of goods sold 1,003,750 1,658,500 Beginning inventory 155,000 210,000 Ending inventory 210,000 100,000 (a1) Determine the inventory turnover for 2021 and 2022. (Round answers to 1 decimal place, e.g. 5.1.) Inventory turnover eTextbook and Media 2021 2022