Hess Company's inventory records show the following data for the month of September: Inventory September 1 Purchases: September 8 September 18 Units 100 450 300 Unit Cost $3.00 3.50 3.70 A physical inventory on September 30 shows 150 units on hands 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 $ $ $ Cost of goods sold $