-29.76% is the change from 820 to 576
Calculation steps:
[( 576 - 820 ) ÷ 820] x 100 = -29.76%
Formula
Percentage change = [(576 - 820) / 820] x 100
Subtract the new number by the original number
576 - 820 = -244
-244 ÷ 820 = -0.2975609756097561
-0.2975609756097561 x 100 = -29.76%