E6-4 During the year, TRC Corporation has the following inventory transactions lculate inventory ounts when costs are ing (LO6-3) Transaction Total Cost Unit Cost $42 47 Date Number of Units Jan. 1 Beginning inventory Apr. 7 Purchase Jul. 16 Purchase Oct 6 Purchase 130 200 110 490 $ 2.100 5,720 9,400 5,280 $22,500 48 For the entire year, the company sells 440 units of inventory for $60 each. Required: 1. Using FIFO, calculate (a) ending inventory, (b) cost of goods sold, (c) sales revenue, and (d) gross profit. 2. Using LIFO, calculate (a) ending inventory, (b) cost of goods sold, (c) sales revenue, and (d) gross profit