-28.4% is the change from 817 to 585
Calculation steps:
[( 585 - 817 ) ÷ 817] x 100 = -28.4%
Formula
Percentage change = [(585 - 817) / 817] x 100
Subtract the new number by the original number
585 - 817 = -232
-232 ÷ 817 = -0.2839657282741738
-0.2839657282741738 x 100 = -28.4%