Question

Hi, please help me out​

Answer 1

15

Explanation:

because 30 -15 = 15

And he lost 15 points from the last game he played

Answer 2

To find percent change, we do: ( new-old / old ) * 100

So,

30 is old, 15 is new.

15 - 30 / 30

= -15 / 30 = -1/2 (100) = -50%