The price of a book is increased from $300 to $480. What is the % of increase in its price?
Choose the correct choice from the following.
A) 10 %  B) 20 %  C) 40 %  D) 50 %  E) 60 %

Rationale: "explanation : change in the price = rs 480 â € “ rs 300 = rs 180 percentage of increase = change in the price initial price * 100 . percentage increase in price = ( 180 300 ) * 100 = 60 % e"
Answer: E