Question

In 1986 the average price of a gallon of gasoline was $0.93 in 2007 the average price of a gallon of gasoline was $2.77 what is the percent of change

Answer 1

$2.77 -$0.93= $1.84
The price of a gallon of gasoline has increased from 1986 to 2007.

$1.84/ $0.93* (100/100)
= $1.84/ $0.93* 100 %
= 197.85%

The percent of change is 197.85%~

Answer 2

If you would like to know what is the percent of change between the years 1986 and 2007, you can calculate this using the following steps:

x% of $0.93 is $2.77
x% * 0.93 = 2.77
x/100 * 0.93 = 2.77        /*100
x * 0.93 = 2.77 * 100     /0.93
x = 2.77 * 100 / 0.93
x = 297.85 %

297.85% - 100% = 197.85%

Result: The change is 197.85%.