-81.83% is the change from 842 to 153
Calculation steps:
[( 153 - 842 ) ÷ 842] x 100 = -81.83%
Formula
Percentage change = [(153 - 842) / 842] x 100
Subtract the new number by the original number
153 - 842 = -689
-689 ÷ 842 = -0.8182897862232779
-0.8182897862232779 x 100 = -81.83%