-29.71% is the change from 828 to 582
Calculation steps:
[( 582 - 828 ) ÷ 828] x 100 = -29.71%
Formula
Percentage change = [(582 - 828) / 828] x 100
Subtract the new number by the original number
582 - 828 = -246
-246 ÷ 828 = -0.2971014492753623
-0.2971014492753623 x 100 = -29.71%