-35.72% is the change from 823 to 529
Calculation steps:
[( 529 - 823 ) ÷ 823] x 100 = -35.72%
Formula
Percentage change = [(529 - 823) / 823] x 100
Subtract the new number by the original number
529 - 823 = -294
-294 ÷ 823 = -0.3572296476306197
-0.3572296476306197 x 100 = -35.72%