Required information Trey Monson starts a merchandising business on December 1 and enters into the following three inventory purchases, Also, on December 15, Monson seils 10 units for $50 each Purchases on December 7 Purchases on December 14 Purchases on December 21 3 units @ $20.00 cost 17 units @ $30.00 cost 15 units @ $36.00 cost Required: Monson sells 10 units for $50 each on December 15. of the units sold, 6 are from the December 7 purchase and 4 are from th 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 Inventory Balance W of units Date Cost of Goods Sold W of Cost per Cost of Goods units Sold sold Cost per unit of units Cost per unit Inventory Balance unit December December 14 Specific identification-Perpetual: Goods purchased Cost of Goods Sold Inventory Balance of units sold of units Cost per Cost of Goods unit Sold Cost per unit Inventory Balance N of units Cost per unit Dato December 7 December 14 December 15 December 21 Totals