During the year, TRC Corporation has the following inventory transactions. Date January 1 April 7 July 16 October 6 Transaction Beginning inventory Purchase Purchase Purchase Number of Units 53 133 203 113 Unit Cost $45 47 50 51 Total Cost $2,385 6,251 10,150 5,763 $24,549 502 For the entire year, the company sells 433 units of inventory for $63 each. Required: 1-a & b. Using FIFO, calculate ending inventory and cost of goods sold. 1-c & d. Using FIFO, calculate sales revenue and gross profit. 2-a & b. Using LIFO, calculate ending inventory and cost of goods sold. 2-c & d. Using LIFO, calculate sales revenue and gross profit. 3-a & b. Using weighted-average cost, calculate ending inventory and cost of goods sold. 3-c & d. Using weighted-average cost, calculate sales revenue and gross profit. 4. Determine which method will result in higher profitability when inventory costs are rising