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Trey Monson starts a merchandising business on December 1 and enters into the following three inventory purchases. Monson uses o perpetual inventory system. Also, on December 15 , Monson sells 15 units for $25 each. Required: Determine the costs assigned to the December 31 ending inventory based on the FIFO method. [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 $25 each. etermine the costs assigned to ending inventory when costs are assigned based on the LIFO method. 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 $25 each. \begin{tabular}{ll} Purchases on December 7 & 10 units e $11.00 cost \\ Purchases on Decenber 14 & 20 units $17.00 cost \\ Purchases on Decenber 21 & 15 units a $19.00 cost \end{tabular} Determine the costs assigned to ending inventory when costs are assigned based on the weighted average method Note: Round your per unit costs to 2 decimal places. 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 $25 each. Or the units sold, 8 are from the December 7 purchase and 7 are from the December 14 purchase, Determine the costs assigned to ending inventory when costs are assigned based on specific identification