-35.84% is the change from 823 to 528
Calculation steps:
[( 528 - 823 ) ÷ 823] x 100 = -35.84%
Formula
Percentage change = [(528 - 823) / 823] x 100
Subtract the new number by the original number
528 - 823 = -295
-295 ÷ 823 = -0.35844471445929527
-0.35844471445929527 x 100 = -35.84%