Early in 2017, Seoul Company switched to a just-in-time inventory system. Its sales, cost of goods sold, and inventory amounts for 2016 and 2017 are shown below. 2016 2017 Sales revenue W2,000,000 W1,800,000 Cost of goods sold 1,000,000 910,000 Beginning inventory 290,000 210,000 Ending inventory 210,000 50,000 Determine the inventory turnover and days in inventory for 2016 and 2017. 2016 2017 Inventory turnover