A gallon of gas cost $3.50 at the beginning of the month. At the end of the month it cost $3.75. What was the percent change in the price of a gallon of gas?
Any comparison with the increase or decrease in price has to be compared to the ORIGINAL price. (at the beginning of the month.)se
The price increased from $3.50 to $3.75, an increase of $0.25
To find what percent it is use: