Required information Trey Monson starts a merchandising business on December 1 and enters into the following three inventory purchases. Also, on December 15, Monson sells 30 units for $35 each. Purchases on December 7 Purchases on December 14 Purchases on December 21 20 units @ $14.00 cost 36 units @ $21.00 cost 30 units @ $25.00 cost Required: Monson sells 30 units for $35 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 Inventory Balance Cost per # of units Cost per Cost of Goods Sold # of Cost per Cost of units unit sold Goods Sold Date Inventory Value # of units Inventory Balance unit unit December 7 December 14 Average cost December 15 December 21 Average cost Totals