A trade analyst announced 10% reduction in the unit price of bike. As a result, the sales volume went up by 5%. What was the net effect on the sales revenue?
Choose the correct choice from the following options:
A) no change	B) decreases by 5.5%	C) increases by 5.5%	D) increases by 5%	E) None of these
Explanation :   Reduction of price = (100 -10)= 
<gadget id="calculator">(100 -10)</gadget>
<output>90</output>
90%= 0.9   Increase of sale = (100+5)= 
<gadget id="calculator">(100+5)</gadget>
<output>105</output>
105%= 1.05   Total effect = 0.9 X 1.05 =94.5%, Decreases by 5.5%   Answer : decreases by 5.5%
<result>B</result>
A trade analyst announced 10% reduction in the unit price of bike. As a result, the sales volume went up by 5%. What was the net effect on the sales revenue?