-83.37% is the change from 860 to 143
Calculation steps:
[( 143 - 860 ) ÷ 860] x 100 = -83.37%
Formula
Percentage change = [(143 - 860) / 860] x 100
Subtract the new number by the original number
143 - 860 = -717
-717 ÷ 860 = -0.8337209302325581
-0.8337209302325581 x 100 = -83.37%