Read the following texts and table with financial data from an S&P 500 earnings report carefully.Based on the question-answer history (if provided), answer the last question. The answer may require mathematical calculation based on the data provided.

Text: stock performance graph the following graph compares the most recent five-year performance of alcoa 2019s common stock with ( 1 ) the standard & poor 2019s 500 ae index and ( 2 ) the standard & poor 2019s 500 ae materials index , a group of 27 companies categorized by standard & poor 2019s as active in the 201cmaterials 201d market sector . such information shall not be deemed to be 201cfiled . 201d five-year cumulative total return based upon an initial investment of $ 100 on december 31 , 2010 with dividends reinvested alcoa inc . s&p 500 ae index s&p 500 ae materials index dec-'10 dec-'11 dec-'12 dec-'14 dec-'15dec-'13 . <table class='wikitable'><tr><td>1</td><td>as of december 31,</td><td>2010</td><td>2011</td><td>2012</td><td>2013</td><td>2014</td><td>2015</td></tr><tr><td>2</td><td>alcoainc .</td><td>$ 100</td><td>$ 57</td><td>$ 58</td><td>$ 72</td><td>$ 107</td><td>$ 68</td></tr><tr><td>3</td><td>s&p 500 aeindex</td><td>100</td><td>102</td><td>118</td><td>157</td><td>178</td><td>181</td></tr><tr><td>4</td><td>s&p 500 aematerials index</td><td>100</td><td>90</td><td>104</td><td>130</td><td>139</td><td>128</td></tr></table> s&p 500 ae index 100 102 118 157 178 181 s&p 500 ae materials index 100 90 104 130 139 128 copyright a9 2016 standard & poor 2019s , a division of the mcgraw-hill companies inc . all rights reserved . source : research data group , inc . ( www.researchdatagroup.com/s&p.htm ) .
Question: what was the investment on the alcoainc . in 2014?
Answer: 107.0
Question: and what was it in 2013?
Answer: 72.0
Question: how much, then, does the 2014 investment represent in relation to the 2013 one?
Answer: 1.48611
Question: and what is the difference between this value and the number one?

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0.48611
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