Required informetion (The following information applies fo the questions displayed below) Trey Monson starts a merchandising business on December 1 and enters into the following three inventory purchases Monson uses a periodic inventory system. Also, on December 15, Monson sells 29 units for 550 each - Nurchases on Decienter 7 . Furchases on Decenter 14 Furchases on Decenter 21 15 undts o fro,og cost. 36 valts e $30.00 cost 29 units a $25.60 cost Determine the costs assigned to ending inventory when costs are assigned based on the FIFO method