Crane Co. uses a periodic inventory system. Its records show the following for the month of May, in which 81 units were sold. May 1 15 24 Inventory Purchases Purchases Totals Units Unit Cost 37 32 42 111 $8 12 13 Total Cost $296 384 546 $1,226 Compute the ending inventory at May 31 and cost of goods sold using the FIFO and LIFO methods. FIFO