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Required information [The following information applies to the questions displayed below.] Tree Seedlings has the following current-year purchases and sales for its only product. Required: The company uses a perpetual inventory system. a. Determine the costs assigned to ending inventory and to cost of goods sold using FIFO. b. Determine the costs assigned to ending inventory and to cost of goods sold using LIFO. c. Compute the gross profit for each method. Determine the costs assianed to endina inventorv and to cost of aoods sold using LIFO. Compute the gross profit for each method