-98.73% is the change from 629 to 8
Calculation steps:
[( 8 - 629 ) ÷ 629] x 100 = -98.73%
Formula
Percentage change = [(8 - 629) / 629] x 100
Subtract the new number by the original number
8 - 629 = -621
-621 ÷ 629 = -0.9872813990461049
-0.9872813990461049 x 100 = -98.73%