-84.1% is the change from 629 to 100
Calculation steps:
[( 100 - 629 ) ÷ 629] x 100 = -84.1%
Formula
Percentage change = [(100 - 629) / 629] x 100
Subtract the new number by the original number
100 - 629 = -529
-529 ÷ 629 = -0.8410174880763116
-0.8410174880763116 x 100 = -84.1%