-83.49% is the change from 860 to 142
Calculation steps:
[( 142 - 860 ) ÷ 860] x 100 = -83.49%
Formula
Percentage change = [(142 - 860) / 860] x 100
Subtract the new number by the original number
142 - 860 = -718
-718 ÷ 860 = -0.8348837209302326
-0.8348837209302326 x 100 = -83.49%