Current Attempt in Progress Ford Co. uses a periodic inventory system. Its records show the following for the month of May, in which 75 units were sold. Units Unit Cost Total Cost May 1 Inventory 35 $8 $280 15 Purchases 30 12 360 25 24 Purchases 40 13 520 Totals 105 $1,160 Compute the ending inventory at May 31 and cost of goods sold using the FIFO and LIFO methods. FIFO Ending inventory $ Cost of goods sold $ LIFO