PA6. LO 10.3Use the last-in, first-out (LIFO) 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 Purchased Mar. 2 Sold Mar. 31 for $75 per unit Number of Units 105 150 88 Unit Cost $40 42