Use the following information for the Quick Study below. Trey Monson starts a merchandising business on December 1 and enters into three inventory purchases: 10 units @$ 6.00 cost Purchases on December 7 Purchases on December 14 20 units $12.00 cost 15 units $14.00 cost Purchases on December 21 QS 5-15 Periodic: Inventory costing with LIFO LO P3 Required: Monson sells 15 units for $20 each on December 15. Assume the periodic inventory system is used. Determine the costs assigned to ending inventory when costs are assigned based on the LIFO method. Inventory Balance Periodic LIFO: Cost of Goods Available for Sale Cost of Goods Sold Cost of Goods Available for Sale of #of units Cost per Cost Cost of Cost per Ending # of units units sold in ending per unit Goods Soldinventory unit unit Inventory es December 7 December 14 December 21 Total