The salary of a worker is first increased by 15% and afterwards reduced by 15%. What is the net change in the worker's salary?
Choose the correct choice
A) 5.25% increase  B) 5.25% decrease  C) 2.25% increase  D) 2.25% decrease  E) no change
Let x be the original salary.   The final salary is 0.85(1.15x) = 0.9775x   The answer is 2.25% decrease.
<result>D</result>
The salary of a worker is first increased by 15% and afterwards reduced by 15%. What is the net change in the worker's salary?