John makes $60 a week from his job. He earns a raise and now makes $120 a week. What is the % increase?  Choose one
A) 16 % B) 100 % C) 17 % D) 17.61 % E) 17.56 %

Rationale: "increase = ( 60 / 60 ) * 100 = ( 6 / 6 ) * 100 = 100 % . b"
Answer: B