Required information [The following information applies to the questions displayed below.] Hemming Company reported the following current-year purchases and sales for its only product. Required: Hemming uses a perpetual inventory system. 1. Determine the costs assigned to ending inventory and to cost of goods sold using FFFO: 2. Determine the costs assigned to ending inventory and to cost of goods sold using LFO. 3. Compute the gross profit for FFO method and LFO method. Determine the costs assigned to ending inventory and to cost of goods sold using FIFO. Determine the costs assigned to ending inventory and to cost of goods sold using LIFO. Compute the gross profit for FIFO method and LIFO method