Zahid Co incurred the following transactions during the month of January 2020. Jan 1: Beginning Inventory (1,000 units @ 10 per unit) Jan 8: Purchased 50 units @ 11 per unit Jan 12: Sold 120 units @ 20 per unit Jan 15 Purchased 70 units @12 per unit Jan 22: Sold 80 units @22 per unit Jan 30: Purchased 30 units @ 13 per unit Required i. The company uses a perpetual inventory system. Determine the cost assigned to ending inventory and to cost of goods sold using (a) weighted average, (b) FIFO. (Round per unit costs and inventory amounts to cents.) ii. Calculate gross profit