You can
put this solution on YOUR website! You can express the difference as the % difference compared to the larger newspaper, and as the % difference compared to the smaller newspaper.
In general the % difference is difference/original x 100.
% difference of the larger paper is (1.67-1.08)/1.67 x 100 = .59/1.67 x 100 = 35.33%.
% difference of the smaller paper is .59/1.08 x 100 = 54.63%