-30.29% is the change from 855 to 596
Calculation steps:
[( 596 - 855 ) ÷ 855] x 100 = -30.29%
Formula
Percentage change = [(596 - 855) / 855] x 100
Subtract the new number by the original number
596 - 855 = -259
-259 ÷ 855 = -0.30292397660818715
-0.30292397660818715 x 100 = -30.29%