-83.74% is the change from 861 to 140
Calculation steps:
[( 140 - 861 ) ÷ 861] x 100 = -83.74%
Formula
Percentage change = [(140 - 861) / 861] x 100
Subtract the new number by the original number
140 - 861 = -721
-721 ÷ 861 = -0.8373983739837398
-0.8373983739837398 x 100 = -83.74%