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.


the company 2019s stock performance the following graph compares cumulative total return of the company 2019s common stock with the cumulative total return of ( i ) the nasdaq stock market-united states , and ( ii ) the nasdaq biotechnology index . the graph assumes ( a ) $ 100 was invested on july 31 , 2001 in each of the company 2019s common stock , the stocks comprising the nasdaq stock market-united states and the stocks comprising the nasdaq biotechnology index , and ( b ) the reinvestment of dividends . comparison of 65 month cumulative total return* among alexion pharmaceuticals , inc. , the nasdaq composite index and the nasdaq biotechnology index alexion pharmaceuticals , inc . nasdaq composite nasdaq biotechnology . <table class='wikitable'><tr><td>1</td><td>-</td><td>7/02</td><td>7/03</td><td>7/04</td><td>7/05</td><td>12/05</td><td>12/06</td><td>12/07</td></tr><tr><td>2</td><td>alexion pharmaceuticals inc .</td><td>100.00</td><td>108.38</td><td>102.64</td><td>167.89</td><td>130.56</td><td>260.41</td><td>483.75</td></tr><tr><td>3</td><td>nasdaq composite</td><td>100.00</td><td>128.98</td><td>142.51</td><td>164.85</td><td>168.24</td><td>187.43</td><td>204.78</td></tr><tr><td>4</td><td>nasdaq biotechnology</td><td>100.00</td><td>149.29</td><td>146.51</td><td>176.75</td><td>186.10</td><td>183.89</td><td>187.04</td></tr></table> .
Question: what was the value of the alexion pharmaceuticals inc . in march?
Answer: 108.38
Question: and what was it in february?
Answer: 100.0
Question: what was, then, the change over the year?
Answer: 8.38
Question: and how much does this change represent in relation to that value in february, in percentage?

0.0838