US uning Principles, 13e Help | System Announcements ES Date Explanation Units Unit Cost Total Cost Sept. 1 Inventory 26 $97 $ 2,522 Sept. 12 Purchases 45 104 4,680 Sept. 19 Purchases 20 106 2,120 Sept. 26 Purchases 50 107 5,350 Totals 141 $14,672 (a) Compute the ending inventory at September 30 and cost of goods sold using the FIFO and LIFO methods. FIFO LIFO The ending inventory at September 30 Cost of goods sold n) Click If you would like to Show Work for this question: Open Show Work