-81.92% is the change from 863 to 156
Calculation steps:
[( 156 - 863 ) ÷ 863] x 100 = -81.92%
Formula
Percentage change = [(156 - 863) / 863] x 100
Subtract the new number by the original number
156 - 863 = -707
-707 ÷ 863 = -0.8192352259559675
-0.8192352259559675 x 100 = -81.92%