-81.65% is the change from 861 to 158
Calculation steps:
[( 158 - 861 ) ÷ 861] x 100 = -81.65%
Formula
Percentage change = [(158 - 861) / 861] x 100
Subtract the new number by the original number
158 - 861 = -703
-703 ÷ 861 = -0.8164924506387921
-0.8164924506387921 x 100 = -81.65%