Question

I need help, please.

Answer 1

Answer:  12.5%

Step-by-step explanation:  Find the difference , 81-72=9

      then find the percentage of the original score 9%   9/72 =  12.5

That adds up to the answer 12.5%

Hoped this helped :)

Answer 2

Step-by-step explanation:

The percent change formula is

$\frac{new - old}{ |old| } = \frac{81 - 72}{ |72| } = \frac{9}{72} = 12.5$