The salary of a worker is first increased by 30% and afterwards reduced by 30%. What is net change in his salary?
Choose the correct choice from the following
A) 90% increase  B) 45% increase  C) 9% decrease  D) Same as before  E) NONE
(30 * 30)/100= 
<gadget id="calculator">(30 * 30)/100</gadget>
<output>9</output>
9% decrease   ANSWER:Same as before
<result>D</result>
The salary of a worker is first increased by 30% and afterwards reduced by 30%. What is net change in his salary?