Required information The following information applies to the questions displayed below) 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 $20 each Purchases on December 7 10 units as 6 cost Purchases on December 14 20 units @ $12 cost Purchases on December 21 15 units @ $14 cost Determine the costs assigned to ending inventory when costs are assigned based on the weighted average method. (Round your per unit costs to 2 decimal places.) Inventory Balance Cost per Inventory unit Balance Weighted Average - Perpetual Goods purchased Cost of Goods Sold of #of Cost per Inventory Cost per Cost of Goods units unit Value unit Sold sold 10 at $ 6.00 = $ 60.00 Date # of units units December 7 at 20 at $ 12.00) = $ 240.00 at $ 12.00 $ 0.00 at December 14 Average cost December 14 December 15 $ 0.00 at $ 210.00 $ E 15 at $ 14.00] = 14.00 at December 21 Average cost December 21 Totals