-81.2% is the change from 867 to 163
Calculation steps:
[( 163 - 867 ) ÷ 867] x 100 = -81.2%
Formula
Percentage change = [(163 - 867) / 867] x 100
Subtract the new number by the original number
163 - 867 = -704
-704 ÷ 867 = -0.81199538638985
-0.81199538638985 x 100 = -81.2%