Enter the missing dollar amounts for the income statement for each of the following independent cases. (Hint: In Case B, work from the bottom up.) Net sales revenue Beginning inventory Purchases Case A Case B $ 7,620 $ 11,040 $ 6,680 4,970 Goods available for sale Ending inventory 10,400 15,220 10,960 Case C $ 6,010 $ 3,970 9,310 13,280 Cost of goods sold 4,460 Gross profit 1,340 Expenses 210 570 Pretax income (loss) $ 1,800 $ (430) $ 980