Refer to the IBM information in Exhibit 4-5. Compute the overall gross profit percentage for 2007, 2008, and 2009?
In Exhibit 4-5

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Consolldated statement of Earnings (USD $) In Millilons, except Share data 12 Months Ended Dec. 31, 2009 Dec. 31, 2008 Dec. 31, 2007 $58,892 Selling. general and administrative Research, development and engineering (Note Q). Intellectual property and custom development income Other (income) and expense Interest expense (Notes K&L Income from continuing operations before income taxes. Provision for income taxes (Note P) Income from continuing operations Income/(loss) from discontinued operations, net of tax $13.425 Earnings/(loss) per share of common stock, assuming dilution: Continuing operations (Note R) Earnings/(loss) per share of common stock, basi: Continuing operations (Note R) $ 10.12 Weighted-average number of common shares outstanding: 1,341,352,754 1,387,797,198 1,456,880,751 1,327,157,410 1,369,367,069 1,433,935,221