In 1930, the average cost for a gallon of gasoline was $0.25. In 2007, the average cost for a gallon of gasoline is $2.60. What is the percent of increase rounded to the nearest whole number?

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Answer 1 · 2016-10-27T06:30:17

#940%# increase

From #1930 " " rarr " " 2007#

#" "$0.25 " "rarr " "$2.60#

This is an increase of #$2.35#

#% "increase" = ("amount of increase")/{"original amount") xx 100%#

#= ($2.35)/($0.25) xx 100%#

#= 940%# increase

(This means it has increased by more than 9 times!)