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 $35 each. Purchases on December 7 Purchases on December 14 Purchases on December 21 20 units @ $14.00 cost 36 units @ $21.00 cost 30 units @ $25.00 cost Required: Monson sells 30 units for $35 each on December 15. Of the units sold, 16 are from the December 7 purchase and 14 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 Cost of Goods Sold Inventory Balance Date # of units Cost per unit # of units sold Cost per Cost of Goods unit Sold Cost per # of units unit Inventory Balance December 7 December 14 December 15 December 21 Totals