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 15 units for $20 each. Purchases on December 7 Purchases on December 14 Purchases on December 21 10 units e$ 6.00 cost 20 units $12.00 cost 15 units @ $14.00 cost QS 5-12 Perpetual: Inventory costing with weighted average LO P1 Required: Monson sells 15 units for $20 each on December 15. Monson uses a perpetual inventory system. Determine the costs assigned to ending inventory when costs are assigned based on the weighted average method. Weighted Average - Perpetual: Goods purchased # of Date Inventory units unit Value Inventory Balance Cost per Cost of Goods Sold # of units Cost of sold unit Goods Sold Cost per 5 # of units Cost per unit Inventory Balance December 7 10 @ $ 6.00] = $ 60.00 10 @ $ 6.00 = $ 60.00 December 14 20 $ 12.00 $ 240.00 101 @ $ 6.00 - $ 60.00 Average cost 20 $ 12.00 - 30 240.00 $ 300.00 December 15 151 $ 0.00 December 21 15 @ $ 14.00 = $ 210.00 @ $ 14.00 Average cost Totals