QS 5-12 Perpetual: Inventory costing with weighted average LO P1 Trey Monson starts a merchandising business on December 1 and enters into the following three inventory purchases Purchases on December 7 Purchases on December 14 Purchases on December 21 15 units $18.00 cost 30 units@ $27.00 cost 25 units $32.00 cost Required Monson sells 25 units for $45 each on December 15. Monson uses a perpetual inventory system Determine the costs assigned to ending inventory when costs are assigned based on the weighted average method. (Round your per unit costs to 2 decimal places.) Weighted Average - Perpetual: Goods purchased ost of Goods Sold Inventory Balance # of Cost per Inventory | units units Cost per Cost of Cost per In ventory Balance Date # of units unit Value unit Goods Sold unit sold 15 18.00 15$ 18.00S 270.00 December 7 270.00 December 14 $ 0.00 $0.00 Average cost December 15 December 21 $ 0.00 $ 24.00- $ 0.00 Average cost Totals $ 0.00