Please answer the given financial question based on the context.
Context: shareowner return performance graph the following performance graph and related information shall not be deemed 201csoliciting material 201d or to be 201cfiled 201d with the sec , nor shall such information be incorporated by reference into any future filing under the securities act of 1933 or securities exchange act of 1934 , each as amended , except to the extent that the company specifically incorporates such information by reference into such filing . the following graph shows a five year comparison of cumulative total shareowners 2019 returns for our class b common stock , the standard & poor 2019s 500 index , and the dow jones transportation average . the comparison of the total cumulative return on investment , which is the change in the quarterly stock price plus reinvested dividends for each of the quarterly periods , assumes that $ 100 was invested on december 31 , 2007 in the standard & poor 2019s 500 index , the dow jones transportation average , and our class b common stock. .
||12/31/2007|12/31/2008|12/31/2009|12/31/2010|12/31/2011|12/31/2012|
|united parcel service inc .|$ 100.00|$ 80.20|$ 86.42|$ 112.60|$ 116.97|$ 121.46|
|standard & poor 2019s 500 index|$ 100.00|$ 63.00|$ 79.67|$ 91.68|$ 93.61|$ 108.59|
|dow jones transportation average|$ 100.00|$ 78.58|$ 93.19|$ 118.14|$ 118.15|$ 127.07|
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Question: what is the roi of an investment in s&p500 from 2008 to 2009?


Answer: The answer is:0.2646