human
performance graph the following graph compares the total return, assuming reinvestment of dividends, on an investment in the company, based on performance of the company's common stock, with the total return of the standard & poor's 500 composite stock index and the dow jones united states travel and leisure index for a five year period by measuring the changes in common stock prices from december 31, 2011 to december 31, 2016. .
|  | 12/11 | 12/12 | 12/13 | 12/14 | 12/15 | 12/16 |
| --------- | --------- | --------- | --------- | --------- | --------- | --------- |
| Royal Caribbean Cruises Ltd. | 100.00 | 139.36 | 198.03 | 350.40 | 437.09 | 362.38 |
| S&P 500 | 100.00 | 116.00 | 153.58 | 174.60 | 177.01 | 198.18 |
| Dow Jones US Travel & Leisure | 100.00 | 113.33 | 164.87 | 191.85 | 203.17 | 218.56 |
the stock performance graph assumes for comparison that the value of the company's common stock and of each index was $100 on december 31, 2011 and that all dividends were reinvested. past performance is not necessarily an indicator of future results. .
Please compute the result.
what was the value of the royal caribbean cruises ltd . in 2013?
assistant
198.03
human
and what was it in 2012?
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139.36
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what was, then, the change in its value over the year?
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58.67
human
and how much does this change represent in relation to the value in 2012, in percentage?
assistant
0.421