Trey Monson starts a merchandising business on December 1 and enters into the following three inventory. purchases. Monson uses a perpetual inventory system. Also, on December 15, Monson sells 15 units for $25 each. Purchases on December 7 Purchases on December 14 Purchases on December 21 10 units $11.00 cost 20 units $17.00 cost 15 units $19.00 cost Of the units sold, 15 are from the December 7 purchase and 15 are from the December 14 purchase. Determine the costs assigned to ending inventory when costs are assigned based on specific identification. Purchases: December 7 December 14 December 21 Total Specific Identification Goods Available for Sale Cost of Goods Sold Ending Inventory # of units Cost per unit Cost of Goods Available for Sale # of units sold Cost Cost of per unit Goods Sold # of units in ending unit Cost per Ending Inventory Inventory