1 Purchases on December 7 Purchases on December 14 Purchases on December 21 15 units 30 units 25 units $18.00 cost $27.00 cost $32.00 cost 1 of 4 Required: Determine the costs assigned to the December 31 ending inventory based on the FIFO method. 04:30:03 Goods Purchased Date # of Units Cost Per Unit December 71 December 14 Total December 14 December 15 Total December 15 December 21 Totals Perpetual FIFO: Cost of Goods Sold Inventory Balance Goods Purchased # of Units Sold Unit Cost Per Cost of Goods Sold # of Units Cost Per Unit Inventory Balance