human
12feb201521095992 performance graph the following graph compares the performance of our common stock with that of the s&p 500 index and the s&p 500 healthcare equipment index. the cumulative total return listed below assumes an initial investment of $100 on december 31, 2009 and reinvestment of dividends. comparison of 5 year cumulative total return rs $200 2009 2010 2011 201420132012 edwards lifesciences corporation s&p 500 s&p 500 healthcare equipment december 31.
| Total Cumulative Return | 2010 | 2011 | 2012 | 2013 | 2014 |
| --------- | --------- | --------- | --------- | --------- | --------- |
| Edwards Lifesciences | $186.16 | $162.81 | $207.65 | $151.43 | $293.33 |
| S&P 500 | 115.06 | 117.49 | 136.30 | 180.44 | 205.14 |
| S&P 500 Healthcare Equipment Index | 96.84 | 102.07 | 120.66 | 153.85 | 194.33 |
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Please answer the following question with expressions if necessary.
what rate of return does this represent?
assistant
subtract(293.33, 100), divide(#0, 100)