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 30 units for $25 each 4 Purchases on December 7 Purchases on December 14 Purchases on December 21 20 units @ $10.00 cost 36 units @ $15.00 cost 30 units @ $18.00 cost poed Required: Monson sells 30 units for $25 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 Cost of Goods Sold Inventory Balance Goods purchased Cost per Cost of Goods Available for unit Sale Cost per # of units Date # of units sold Cost per Cost of Goods unit Sold # of units Inventory Balance unit December 7 $ 0.00 December 14 $ 0.00 $ 0.00 December 15 December 21 $ 0.00 @ Totals