13.4. Residual Operating Income and Abnormal Operating Income Growth (Easy) Here are financial statements for a firm (in millions of dollars): Income Statement Balance Sheet, End of Year 2009 2008 2008 2007 Operating income 2,700 2,300 Net operating assets 20,000 18,500 Interest expense Net income 800 1,900 500 Financing debt 10,000 6,250 1,800 Common equity 50,000 12.250 The firm has a required return of 10 percent for operations. Calculate residual operating income for 2009 and 2008 using beginning-of-year balance sheet numbers. Then calculate abnormal operating income growth for 2009.