4. Using the following information, calculate gross profit and ending inventory using a) FIFO, b) LIFO, and c) weighted-average cost methods under an inventory system that uses specific identification. The company sold 2 units for $50 each on August 27 Date Units Cost/unit Total Cost 2 $11 $22 Aug. 10 Purchas 12 Purchas 14 Purchas 2 $15 30 2 $22 44 $96 Total