-88.12% is the change from 842 to 100
Calculation steps:
[( 100 - 842 ) ÷ 842] x 100 = -88.12%
Formula
Percentage change = [(100 - 842) / 842] x 100
Subtract the new number by the original number
100 - 842 = -742
-742 ÷ 842 = -0.8812351543942993
-0.8812351543942993 x 100 = -88.12%