gas costs $2.53 per gallon in May. In September, gas cost $3.05 per gallon. What was the percent change in the cost of a gallon of gas?
Accepted Solution
A:
First, find the difference: $3.05 - $2.53 = $0.52 Take the positive difference and divide with the original price: 0.52 / 2.53 = 0.2055(bunch of numbers) Then, multiply that by 100 or move the decimal 2 places to the right. 20.55 (rounded) Your answer is: 20.6%