-29.47% is the change from 828 to 584
Calculation steps:
[( 584 - 828 ) ÷ 828] x 100 = -29.47%
Formula
Percentage change = [(584 - 828) / 828] x 100
Subtract the new number by the original number
584 - 828 = -244
-244 ÷ 828 = -0.2946859903381642
-0.2946859903381642 x 100 = -29.47%