In 2003,gas cost,on an average 1.67$. In 2006 the average gas cost was 2.59$. Using the percent of change formula , what was the percent increase of the

In 2003,gas cost,on an average 1.67$. In 2006 the average gas cost was 2.59$. Using the percent of  change formula , what was the percent increase of the gas prices? Round your anwser to the nearest whole percent.