-24.22% is the change from 830 to 629
Calculation steps:
[( 629 - 830 ) ÷ 830] x 100 = -24.22%
Formula
Percentage change = [(629 - 830) / 830] x 100
Subtract the new number by the original number
629 - 830 = -201
-201 ÷ 830 = -0.2421686746987952
-0.2421686746987952 x 100 = -24.22%