Trey Monson starts a merchandising business on December 1 and enters into the following three inventory purchases. Also, on December 15, Monson sells 18 units for $10 each. Purchases on December 7 Purchases on December 14 Purchases on December 21 8 units @ $4.00 cost 26 units @ $6.00 cost 18 units @ $7.00 cost Required: Monson sells 18 units for $10 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 # of Cost per Inventory Date units unit Value Inventory Balance Cost of Goods Sold # of Cost per Cost of units unit Goods Sold sold Cost per # of units Inventory unit Balance B@ $ 4.00 = $ 32.00 December 7 December 14 8 @ $ 4.00 = $ 32.00 $ 26 @ $ 6.00 = 156.00 $ 32.00 8@ $ 4.00 = 26 @ $ 6.00 - 34 @ $ 5.53 = 156.00 $ 188.00 Average cost December 15 18 $ 0.00 December 21 181 @ $ 7.00 - $ 126.00 @ @ $ 7.00 - 0 Average cost Totals $ 0.00