ABC starts a merchandising business on December 1 and enters into the following three inventory purchases. Also, on December 15, ABC sells 23 units for $30 each. Purchases on December 7 Purchases on December 14 Purchases on December 21 13 units @ $12.00 cost 30 units @ $18.00 cost 23 units @ $22.00 cost Required: ABC sells 23 units for $30 each on December 15. ABC 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 Cost per Cost per # of units Date Cost of Goods Available for Sale # of units sold Cost per Cost of Goods unit Sold # of units Inventory Balance unit unit December 7 December 14 December 15 December 21 Totals