View Policies Current Attempt in Progress Sheffield Co. uses a periodic inventory system. Its records show the following for the month of May, in which 75 units were sold. Unit Cost Total Cost Units May 1 Inventory 34 $7 $238 15 Purchases 26 10 260 24 Purchases 37 11 407 Totals 97 $905 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 $ $