-23.57% is the change from 823 to 629
Calculation steps:
[( 629 - 823 ) ÷ 823] x 100 = -23.57%
Formula
Percentage change = [(629 - 823) / 823] x 100
Subtract the new number by the original number
629 - 823 = -194
-194 ÷ 823 = -0.23572296476306198
-0.23572296476306198 x 100 = -23.57%