-30.38% is the change from 823 to 573
Calculation steps:
[( 573 - 823 ) ÷ 823] x 100 = -30.38%
Formula
Percentage change = [(573 - 823) / 823] x 100
Subtract the new number by the original number
573 - 823 = -250
-250 ÷ 823 = -0.3037667071688943
-0.3037667071688943 x 100 = -30.38%