Exercise 6-06 (Video) Lily Co. uses a periodic inventory system. Its records show the following for the month of May, in which 69 units were sold. May 1 15 24 Unit Cost $6 9 Units 32 27 32 91 Inventory Purchases Purchases Totals Total Cost $192 243 320 10 $755 Compute the ending inventory at May 31 and cost of goods sold using the FIFO and LIFO methods. FIFO LIFO Ending inventory at May 31 $ $ Cost of goods sold $