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 answers:
A) 3 % decrease	B) 5 % decrease	C) 9 % decrease	D) 4 % decrease	E) 8 % decrease

Rationale: ( 30 * 30 ) / 100 = 9 % decrease answer : c :
Answer: C