-81.51% is the change from 860 to 159
Calculation steps:
[( 159 - 860 ) ÷ 860] x 100 = -81.51%
Formula
Percentage change = [(159 - 860) / 860] x 100
Subtract the new number by the original number
159 - 860 = -701
-701 ÷ 860 = -0.8151162790697675
-0.8151162790697675 x 100 = -81.51%