PLEASE HELP I AM NOT GOOD AT MATH

Answer:
3
Step-by-step explanation:
Step 1: Calculate the change by subtracting old cost ($52) from the new cost ($64)
Step 2: Divide that change by the old cost ($52). You will get a decimal number
Step 3: Convert the decimal number to a percentage by multiplying by 100%
Answer:
Around 2.8% to 2.9%, the exact number is 2.898550724637681%
Step-by-step explanation:
A change from 69 to 71 represents a positive change (increase) of 2.898550724637681%
Use the formula found below on this webpage to find the percent change by replacing the given values:
Percent change = New - Old
|Old|
x 100%
Percent change = 71 - 69
|69|
x 100 = 2
69
x 100 = 2.898550724637681 % (increase)
Where: 69 is the old value and 71 is the new value. In this case we have a positive change (increase) of 2.898550724637681 percent because the new value is greater than the old value.