Use the first-in, first-out (FIFO) cost allocation method, with perpetual inventory updating, to calculate (a) sales revenue, (b) cost of goods sold, and (c) gross margin for A75 Company, considering the following transactions. Beginning Inventory Number Unit of Units Cost 110 $45 Purchased Mar. 2 155 47 Sold Mar. 31 for $75 per unit 83 (a) Sales Revenue (b) Cost of Goods Sold (c) Gross Margin