Question

In 1992, Jason bought a gallon of gas for $1.21. Yesterday, he bought a gallon of gas for $2.08. What is the percentage increase of the price of a gallon of gas from 1992 to yesterday? If necessary, round to the nearest tenth of a percent.

Answer 1

Subtract the old amount from the new amount: 2.08-1.21=0.87.
Divide the difference by the old amount: .87/1.21=0.719 or .72 or 72% :)