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.


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 december 31 , 2011 , 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 december 31 , december 29 , december 28 , january 3 , january 2 , december 31 . <table class='wikitable'><tr><td>1</td><td>company/index</td><td>december 31 2011</td><td>december 29 2012</td><td>december 28 2013</td><td>january 3 2015</td><td>january 2 2016</td><td>december 31 2016</td></tr><tr><td>2</td><td>advance auto parts</td><td>$ 100.00</td><td>$ 102.87</td><td>$ 158.46</td><td>$ 228.88</td><td>$ 217.49</td><td>$ 244.64</td></tr><tr><td>3</td><td>s&p 500 index</td><td>100.00</td><td>114.07</td><td>152.98</td><td>174.56</td><td>177.01</td><td>198.18</td></tr><tr><td>4</td><td>s&p retail index</td><td>100.00</td><td>122.23</td><td>178.55</td><td>196.06</td><td>245.31</td><td>256.69</td></tr></table> .
Question: what was the change in the value of s&p 500 index from january 2015 to january 2016?
Answer: 2.45
Question: and what was the value of that stock in january 2015?

174.56