Required information Exercise 6-5A Calculate inventory amounts when costs are declining (LO6-3) [The following information applies to the questions displayed below.] During the year, Trombley Incorporated has the following inventory transactions. For the entire year, the company sells 81 units of inventory for $30 each. Exercise 6-5A Part 1 Required: 1. Using FIFO, calculate ending inventory, cost of goods sold, sales revenue, and gross profit. Required: 1. Using FIFO, calculate ending inventory, cost of goods sold, sales revenue, and gross profit. 3. Using weighted-average cost, calculate ending inventory, cost of goods sold, sales revenue, and gross profit. (Round "Average C per unit" to 2 decimal places and all other answers to the nearest whole number.)