-77.91% is the change from 842 to 186
Calculation steps:
[( 186 - 842 ) ÷ 842] x 100 = -77.91%
Formula
Percentage change = [(186 - 842) / 842] x 100
Subtract the new number by the original number
186 - 842 = -656
-656 ÷ 842 = -0.7790973871733967
-0.7790973871733967 x 100 = -77.91%