-30.27% is the change from 839 to 585
Calculation steps:
[( 585 - 839 ) ÷ 839] x 100 = -30.27%
Formula
Percentage change = [(585 - 839) / 839] x 100
Subtract the new number by the original number
585 - 839 = -254
-254 ÷ 839 = -0.30274135876042907
-0.30274135876042907 x 100 = -30.27%