how to find cost to retail ratio and part 2 of question

The records of Earthly Goods provided the following information for the year ended December 31, 2020. January 1 beginning inventory Purchases Purchase returns Sales Sales returns At Cost At Retail $ 521,350 $ 977,150 4,138,245 6,448,700 62,800 129,350 5,595,700 49,600 Required: 1. Prepare an estimate of the company's year-end inventory by the retail method. (Round all calculations to two decimal places.) EARTHLY GOODS Estimated Inventory December 31, 2020 At Cost At Retail Goods available for sale $ 521,350 $ 4,138,245 62 800 977 150 6,448,700 Purchases Purchase returns 129,350 $ 4,506.795 $ 7,296,500 5.546 100 $ 1,750.400 Goods available for sale Less Net sales at retail Ending inventory at retail Cost to retail ratio Estimated ending inventory at cost $ 17.504 2. Under the assumption the company took a year-end physical inventory at marked selling prices that totalled $1,685,800, prepare a schedule showing the store's loss from theft or other causes at cost and at retail. EARTHLY GOODS Inventory Shortage December 31, 2020 At Cost Estimated inventory, December 31 Physical inventory Inventory shortage At Retail 1,750,400 S