Required information Trey Monson starts a merchandising business on December 1 and enters into the following three inventory purchases. Also, on December 15, Monson sells 28 units for $25 each. Purchases on December 7 Purchases on December 14 Purchases on December 21 18 units @ $10.00 cost 35 units @ $15.00 cost 28 units @ $18.00 cost Required: Monson uses a perpetual inventory system. Determine the costs assigned to the December 31 ending inventory based on the FIFO method. Perpetual FIFO: Goods Purchased Cost Per Goods Unit Purchased Cost of Goods Sold Units Cost Per Cost of Goods Unit Sold Sold # of Units of Inventory Balance Units Cost Per Cost Per Inventory Unit Balance Date December 7 December December December Totals