human
6feb201418202649 performance graph the table below compares the cumulative total shareholder return on our common stock with the cumulative total return of (i) the standard & poor 2019s 500 composite stock index (2018 2018s&p 500 index 2019 2019), (ii) the standard & poor 2019s industrials index (2018 2018s&p industrials index 2019 2019) and (iii) the standard & poor 2019s consumer durables & apparel index (2018 2018s&p consumer durables & apparel index 2019 2019), from december 31, 2008 through december 31, 2013, when the closing price of our common stock was $22.77. the graph assumes investments of $100 on december 31, 2008 in our common stock and in each of the three indices and the reinvestment of dividends. $350.00 $300.00 $250.00 $200.00 $150.00 $100.00 $50.00 performance graph.
|  | 2009 | 2010 | 2011 | 2012 | 2013 |
| --------- | --------- | --------- | --------- | --------- | --------- |
| Masco | $128.21 | $120.32 | $102.45 | $165.80 | $229.59 |
| S&P 500 Index | $125.92 | $144.58 | $147.60 | $171.04 | $225.85 |
| S&P Industrials Index | $120.19 | $151.89 | $150.97 | $173.87 | $243.73 |
| S&P Consumer Durables & Apparel Index | $136.29 | $177.91 | $191.64 | $232.84 | $316.28 |
in july 2007, our board of directors authorized the purchase of up to 50 million shares of our common stock in open-market transactions or otherwise. at december 31, 2013, we had remaining authorization to repurchase up to 22.6 million shares. during the first quarter of 2013, we repurchased and retired 1.7 million shares of our common stock, for cash aggregating $35 million to offset the dilutive impact of the 2013 grant of 1.7 million shares of long-term stock awards. we have not purchased any shares since march 2013. .
Please compute the result.
what was the performance value of the masco common stock in 2013?
assistant
229.59
human
and what was it in 2009?
assistant
100.0
human
what was, then, the change over the year?
assistant
129.59
human
what was the performance value of the masco common stock in 2009?
assistant
100.0
human
and how much does that change represent in relation to this 2009 performance value, in percentage?
assistant
1.2959