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. Units Sold at Retail Units Acquired at Cost 120 units @ $2 $ 240 94 units @ $ 8 Date January 1 January 3 February 14 February 15 June 30 November 6 November 19 Activities Beginning inventory Sales Purchase Sales Purchase Sales Purchase 174 units @ $3 $ 522 140 units @ $ 8 170 units @ $4 = $ 680 134 units @ $ 8 52 units @ $5 $ 260 $ 1,702 Totals 516 units 368 units 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