-85.48% is the change from 978 to 142
Calculation steps:
[( 142 - 978 ) ÷ 978] x 100 = -85.48%
Formula
Percentage change = [(142 - 978) / 978] x 100
Subtract the new number by the original number
142 - 978 = -836
-836 ÷ 978 = -0.8548057259713702
-0.8548057259713702 x 100 = -85.48%