-81.49% is the change from 859 to 159
Calculation steps:
[( 159 - 859 ) ÷ 859] x 100 = -81.49%
Formula
Percentage change = [(159 - 859) / 859] x 100
Subtract the new number by the original number
159 - 859 = -700
-700 ÷ 859 = -0.8149010477299186
-0.8149010477299186 x 100 = -81.49%