-95.07% is the change from 629 to 31
Calculation steps:
[( 31 - 629 ) ÷ 629] x 100 = -95.07%
Formula
Percentage change = [(31 - 629) / 629] x 100
Subtract the new number by the original number
31 - 629 = -598
-598 ÷ 629 = -0.9507154213036566
-0.9507154213036566 x 100 = -95.07%