what was the cumulative total return on apple stock between september 30 2007 and september 30 2012?
company stock performance the following graph shows a five-year comparison of cumulative total shareholder return , calculated on a dividend reinvested basis , for the company , the s&p 500 composite index , the s&p computer hardware index , and the dow jones u.s . technology index . the graph assumes $ 100 was invested in each of the company 2019s common stock , the s&p 500 composite index , the s&p computer hardware index , and the dow jones u.s . technology index as of the market close on september 30 , 2007 . data points on the graph are annual . note that historic stock price performance is not necessarily indicative of future stock price performance . sep-11sep-10sep-09sep-08sep-07 sep-12 apple inc . s&p 500 s&p computer hardware dow jones us technology comparison of 5 year cumulative total return* among apple inc. , the s&p 500 index , the s&p computer hardware index , and the dow jones us technology index *$ 100 invested on 9/30/07 in stock or index , including reinvestment of dividends . fiscal year ending september 30 . copyright a9 2012 s&p , a division of the mcgraw-hill companies inc . all rights reserved . september 30 , september 30 , september 30 , september 30 , september 30 , september 30 .

|  | September 30,  2007 | September 30,  2008 | September 30,  2009 | September 30,  2010 | September 30,  2011 | September 30,  2012 |
| :--- | :--- | :--- | :--- | :--- | :--- | :--- |
| Apple Inc. | $100 | $74 | $121 | $185 | $248 | $437 |
| S&P 500 | $100 | $78 | $73 | $80 | $81 | $105 |
| S&P Computer Hardware | $100 | $84 | $99 | $118 | $134 | $214 |
| Dow Jones US Technology | $100 | $76 | $85 | $95 | $98 | $127 |

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initial_investment = 100
final_value = 437
answer = final_value - initial_investment