The price of a book is increased from $300 to $450. What is the % of increase in its price?  Choices.
A) 10%	B) 20%	C) 40%	D) 50%	E) 60%
Explanation: Change in the price = Rs 450 â€“ Rs 300   = Rs 150   Percentage of increase = Change in the price Initial Price   * 100.   Percentage increase in price =( 150 300   ) *100 = 50%   50%
<result>D</result>
The price of a book is increased from $300 to $450. What is the % of increase in its price?