Shellhammer Company's inventory records show the following data for the month of September Units Unit Cost Inventory. September 1 $3.34 Purchases: September 8 3.50 September 18 350 3.70 100 450 A physical inventory on September 30 shows 200 units on hand. Calculate the value of ending inventory and cost of goods sold if the company uses LIFO Inventory costing and a periodic inventory system Ending inventory S Cost of goods sold $