Mena Company uses a perpetual inventory system. It entered into the following purchases and sales transactions for April. Date Units Sold at Retail Apr. 1 Activities Units Acquired at Cost Beginning inventory 20 units @ $3,000/unit Purchase 30 units @ $3,500/unit Apr. 6 Apr. 9 Sales 35 units @ $12,000/unit Purchase Apr. 17 Apr. 25 5 units @ $4,500/unit 10 units @ $4,580/unit Purchase Apr. 30 Sales 25 units @ $14,000/unit Total 65 units 60 units Required a) Calculate amount of ending inventory by using i. FIFO method Weighted Average Method b) Calculate Cost of Goods Sold by using i. FIFO method ii. Weighted Average Method c) Calculate the amount of Gross Profit by using i. FIFO method ii. Weighted Average Method