Required information Use the following information for the Quick Study below. Trey Monson starts a merchandising business on December 1 and enters into the following three inventory purchases. Also, on December 15, Monson 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: Monson sells 23 units for $30 each on December 15. Of the units sold. 10 are from the December 7 purchase and 13 are from the December 14 purchase. Monson uses a perpetual inventory system. Determine the costs assigned to the December 31 ending inventory when costs are assigned based on specific identification. Specific Identification-Perpetual: Goods purchased Date # of units Cost of Goods Sold Inventory Balance of units Cost per Cost of Goods # of units Cost per Inventory unit Sold unit sold Balance Cost per unit December 7 December 14 December 15 December 21 $ 22.00