-40.22% is the change from 823 to 492
Calculation steps:
[( 492 - 823 ) ÷ 823] x 100 = -40.22%
Formula
Percentage change = [(492 - 823) / 823] x 100
Subtract the new number by the original number
492 - 823 = -331
-331 ÷ 823 = -0.402187120291616
-0.402187120291616 x 100 = -40.22%