-98.9% is the change from 725 to 8
Calculation steps:
[( 8 - 725 ) ÷ 725] x 100 = -98.9%
Formula
Percentage change = [(8 - 725) / 725] x 100
Subtract the new number by the original number
8 - 725 = -717
-717 ÷ 725 = -0.9889655172413793
-0.9889655172413793 x 100 = -98.9%