Rusthe Inc, uses a periodic inventory system. Its records show the following for the month of May, in which 74 units were sold. Units Unit Cost Total Cost May 1 Inventory 30 $9 $270 15 Purchases 25 10 250 24 Purchases 38 11 418 Totals 93 $938 Compute the ending inventory at May 31 and cost of goods sold using the FIFO, LIFO, and average-cost methods. (Round per unit cost to 3 decimal places, e.g. 15.647 and final answers to decimal places, eg: 5,125) FIFO LIFO Average-cost Ending inventory at May 31 $ 209 171 192 Cost of goods sold $ 91 $ $