the price of a book is increased from $ 300 to $ 360 . what is the % of increase in its price ?
"explanation : change in the price = rs 360 – rs 300 = rs 60 percentage of increase = change in the price initial price * 100 . percentage increase in price = ( 60 300 ) * 100 = 20 % b"
multiply(divide(subtract(360, 300), 300), const_100)