Required information [The following information applies to the questions displayed below] Trey Monson starts a merchandising business on December 1 and enters into the following three inventory purchases. Monson uses a perpetual inventory system. Also, on December 15 , Monson sells 15 units for $31 each. Determine the costs assigned to ending inventory when costs are assigned based on therweighted average method. (Round your per unit costs to 2 decimal places.) Explanation Weighted Average-Perpetual