-20.53% is the change from 823 to 654
Calculation steps:
[( 654 - 823 ) ÷ 823] x 100 = -20.53%
Formula
Percentage change = [(654 - 823) / 823] x 100
Subtract the new number by the original number
654 - 823 = -169
-169 ÷ 823 = -0.20534629404617255
-0.20534629404617255 x 100 = -20.53%