-85.07% is the change from 978 to 146
Calculation steps:
[( 146 - 978 ) ÷ 978] x 100 = -85.07%
Formula
Percentage change = [(146 - 978) / 978] x 100
Subtract the new number by the original number
146 - 978 = -832
-832 ÷ 978 = -0.8507157464212679
-0.8507157464212679 x 100 = -85.07%