From the beginning to the end of 2007, the price of a stock rose 20 percent. In 2008, it dropped 25 percent. In 2009, it rose 15 percent. What percent of the stockâ€™s 2007 starting price was the price of the stock at the end of 2009? Choose the correct option:
A) 80
B) 103.5
C) 95
D) 100
E) 108
Assume a value at the beginning of 2007. As this is a % question, assume P=100.   At the end of 2007 it becmae = 1.2*100= 
<gadget id="calculator">1.2*100</gadget>
<output>120</output>
120   At the end of 2008 it decreased by 25%= 120*.75= 
<gadget id="calculator">120*.75</gadget>
<output>90</output>
90   At the end of 2009 it increased by 20%= 90*1.15= 
<gadget id="calculator">90*1.15</gadget>
<output>103.5</output>
103.5   Thus ratio= 103.5/100 = 1.03 (in % terms = 103%). Thus 103.5 is the correct answer.
<result>B</result>
From the beginning to the end of 2007, the price of a stock rose 20 percent. In 2008, it dropped 25 percent. In 2009, it rose 15 percent. What percent of the stockâ€™s 2007 starting price was the price of the stock at the end of 2009?