Required information Use the following information for the Quick Study below Trey Monson starts a merchandising business on December 1and enters into the following three inventory purchases Also, on December 15, Monson sells 27 units for $20 each Purchases on December 7 Purchases on December 14 Purchases on December 21 17 units $8.00 cost 34 units $12.00 cost 27 units $14.00 cost QS 6-12 Perpetual: Inventory costing with weighted average LO P1 Required Monson sells 27 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. (Round your per unit costs to 2 decimal places.) Weighted Average Perpetual: oods purchase Cost of Goods Sold Inventory Balance #of Cost per 'nventoryl units #of units Cost perCost of sold Inventory Sold! #of units Costiter Date unit Value unit Goods Balance December 7 $ 0.00 December 14 $ 0.00 $ 0.00 Average cost December 15 December 21 0.00 $ 0.00 Average cost Totals $ 0.00