-85.69% is the change from 978 to 140
Calculation steps:
[( 140 - 978 ) ÷ 978] x 100 = -85.69%
Formula
Percentage change = [(140 - 978) / 978] x 100
Subtract the new number by the original number
140 - 978 = -838
-838 ÷ 978 = -0.8568507157464212
-0.8568507157464212 x 100 = -85.69%