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 15 units for $20 each. Purchases on December 7 Purchases on December 14 Purchases on December 21 10 units @ $6.00 cost 20 units @ $12.00 cost 15 units @ $14.00 cost Required: Monson sells 15 units for $20 each on December 15. Monson uses a perpetual Inventory system. Determine the costs assigned to the December 31 ending Inventory when costs are assigned based on LIFO. Perpetual LIFO: Goods purchased Cost of Goods Sold Inventory Balance Date # of units Cost per unit Cost of Goods Available for Sale # of units sold Cost per unit Cost of Goods Sold # of units Cost per unit Inventory Balance December 7 December 14 December 15 December 21 Totals