The salary of a worker is first increased by 20% and afterwards reduced by 20%. What is the net change in the worker's salary? Choose the correct option.
A) 4% decrease
B) 8% decrease
C) 4% increase
D) 8% increase
E) no change
Let x be the original salary.   The final salary is 0.8(1.2x) = 0.96x   The answer is 4% decrease.
<result>A</result>
The salary of a worker is first increased by 20% and afterwards reduced by 20%. What is the net change in the worker's salary?