Q2: Dhofar Company has the following information regarding its inventory items for 2021. Date Event Details Jan. 1 Balance 500 units @ R03.5 April 7 Purchase 300 units @ R04.5 June 17 Sale 325 units Aug. 13 Purchase 280 units @ RO6 Oct. 16 Sale 310 units Nov. 12 Purchase 200 units @ RO 6.5 Dec. 21 Sale 150 units a. Using the periodic system, determine cost of goods sold and the ending inventory balance under FIFO, LIFO, and weighted average. b. Determine FIFO, LIFO, and weighted average under the perpetual system