-81.16% is the change from 865 to 163
Calculation steps:
[( 163 - 865 ) ÷ 865] x 100 = -81.16%
Formula
Percentage change = [(163 - 865) / 865] x 100
Subtract the new number by the original number
163 - 865 = -702
-702 ÷ 865 = -0.8115606936416185
-0.8115606936416185 x 100 = -81.16%