use the correct stated method (PERIODIC LIFO)!!!!!!!!!

16 Part 2 of 4 ! 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 $50 each. Purchases on December 7 Purchases on December 14 Purchases on December 21 Determine the costs assigned to ending inventory when costs are assigned based on the LIFO method. Purchases: Total December 7 December 14 December 21 20 units @ $20.00 cost 34 units@ $30.00 cost 30 units@ $36.00 cost of units Cost of Goods Available for Sale Cost of Goods Available for Sale Cost per unit Periodic LIFO: Cost of Goods Sold # of units sold Cost Cost of per unit Goods Sold Inventory Balance # of units in ending inventory Cost Ending per unit Inventory