-28.52% is the change from 817 to 584
Calculation steps:
[( 584 - 817 ) ÷ 817] x 100 = -28.52%
Formula
Percentage change = [(584 - 817) / 817] x 100
Subtract the new number by the original number
584 - 817 = -233
-233 ÷ 817 = -0.28518971848225216
-0.28518971848225216 x 100 = -28.52%