-85.99% is the change from 978 to 137
Calculation steps:
[( 137 - 978 ) ÷ 978] x 100 = -85.99%
Formula
Percentage change = [(137 - 978) / 978] x 100
Subtract the new number by the original number
137 - 978 = -841
-841 ÷ 978 = -0.8599182004089979
-0.8599182004089979 x 100 = -85.99%