-22.84% is the change from 823 to 635
Calculation steps:
[( 635 - 823 ) ÷ 823] x 100 = -22.84%
Formula
Percentage change = [(635 - 823) / 823] x 100
Subtract the new number by the original number
635 - 823 = -188
-188 ÷ 823 = -0.2284325637910085
-0.2284325637910085 x 100 = -22.84%