Required information 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 Purchases on December 14 Purchases on December 10 units @ $ 6.00 cost 20 units @ $12.00 cost 15 units @ $14.00 cost QS 5-12 Perpetual: Inventory costing with weighted average LO P1 ences 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. 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 Date # of Cost per Inventory units unit Value Cost of Goods Sold W of Inventory Balance Inventory unit Balance units Cost of Goods Sold cost per unit of cost per of units sold December 7 December 14 Average cost December 15 December 21 Average cost Totals