human
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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Please answer the following questions with expressions if necessary.
what was the price of advance auto parts in 2011?
assistant
195.80
human
what was the price in 2009?
assistant
100
human
what is the difference?
assistant
subtract(195.80, 100)
human
what is the percent change?
assistant
subtract(195.80, 100), divide(#0, 100)
human
what is that times 1?
assistant
subtract(195.80, 100), divide(#0, 100), multiply(#1, const_1)