from 2009 to 2012 , what percentage return did advance auto parts beat the overall market?
stock price performance the following graph shows a comparison of the cumulative total return on our common stock , the standard & poor 2019s 500 index and the standard & poor 2019s retail index . the graph assumes that the value of an investment in our common stock and in each such index was $ 100 on january 3 , 2009 , and that any dividends have been reinvested . the comparison in the graph below is based solely on historical data and is not intended to forecast the possible future performance of our common stock . comparison of cumulative total return among advance auto parts , inc. , s&p 500 index and s&p retail index company/index january 3 , january 2 , january 1 , december 31 , december 29 , december 28 .

| Company/Index | January 3, 2009 | January 2, 2010 | January 1, 2011 | December 31, 2011 | December 29, 2012 | December 28, 2013 |
| :--- | :--- | :--- | :--- | :--- | :--- | :--- |
| Advance Auto Parts | $100.00 | $119.28 | $195.80 | $206.86 | $213.14 | $327.63 |
| S&P 500 Index | 100.00 | 119.67 | 134.97 | 134.96 | 150.51 | 197.62 |
| S&P Retail Index | 100.00 | 141.28 | 174.70 | 179.79 | 219.77 | 321.02 |

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a = 213.14 - 100
b = 150.51 - 100
c = a - b