-30.88% is the change from 829 to 573
Calculation steps:
[( 573 - 829 ) ÷ 829] x 100 = -30.88%
Formula
Percentage change = [(573 - 829) / 829] x 100
Subtract the new number by the original number
573 - 829 = -256
-256 ÷ 829 = -0.3088057901085645
-0.3088057901085645 x 100 = -30.88%