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 14 Purchases on December 21 10 units6.00 cost 20 units $12.00 cost 15 units $14.00 cost OS 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: t of Goods Sold e of #of Cost per Inventory units Cost perCost of Cost per Inventory Balance Date Goods Sold | # of units unit Value unit unit S 0.00 S 0.00 Average cost S 0.00 S 0.00 Average cost Totals