To calculate the percent change in the price of a gallon of milk from 2000 to 2015, we can use the following formula:
Percent Change = ((New Value - Old Value) / Old Value) * 100
Old Value (2000) = $2.79
New Value (2015) = $3.98
Applying the values to the formula, we have:
Percent Change = ((3.98 - 2.79) / 2.79) * 100
Calculating the numerator:
3.98 - 2.79 = 1.19
Calculating the percent change:
Percent Change = (1.19 / 2.79) * 100
Percent Change ≈ 42.65
Therefore, the percent change in the price of a gallon of milk from 2000 to 2015 is approximately 42.65%.