Enter the missing dollar amounts for the income statement for each of the following independent cases: Cases Sales Revenue Beginning Inventory Purchases Total Available Ending Inventory Cost of Goods Sold Gross Profit Expenses $ $ Pretax Income (Loss) $ (520) 300 1,700 1,480 $ $ 1,750 $ 500 $ B 1,450 1,220 1,250 $ (250) $ 270