Required information [The following information applies to the questions displayed below.] Trey Monson starts a merchandising business on December 1 and enters into the following three inventory purchases. Monson uses a periodic inventory system. Also, on December 15, Monson sells 30 units for $35 each. Purchases on December 7 Purchases on December 14 Purchases on December 21 20 units $14.00 cost 36 units @ $21.00 cost 30 units $25.00 cost Determine the costs assigned to ending inventory when costs are assigned based on the FIFO method. Purchases: December 7 December 14 December 21 Total Periodic FIFO: Goods Available for Sale Cost of Goods Sold Cost of Goods #of # of units Cost per unit Cost per Available for units unit Cost of Goods Sold Sale sold # of units in ending Inventory Ending Inventory Cost per unit Ending Inventory