-81.7% is the change from 978 to 179
Calculation steps:
[( 179 - 978 ) ÷ 978] x 100 = -81.7%
Formula
Percentage change = [(179 - 978) / 978] x 100
Subtract the new number by the original number
179 - 978 = -799
-799 ÷ 978 = -0.8169734151329243
-0.8169734151329243 x 100 = -81.7%