How do you calculate percentage change

hope this helps :)

Calculating Percentage Change Step-by-Step  

To calculate a percentage increase, first work out the difference (increase) between the two numbers you are comparing:  

Increase = New Number - Original Number  

Next, divide the increase by the original number and multiply the answer by 100:  

% increase = Increase ÷ Original Number × 100.  

If the answer is a negative number, that means the percentage change is a decrease.

x is greater than 5

step-by-step explanation:

2x+7 is greater than 17

    -7                           -7

2x is greater than 10

divide by 2 each side

x is greater than 5

hey! so 1 (25) out of 4 (100) is 25 so your answer is 25%. it's like quarters!