-99.39% is the change from 978 to 6
Calculation steps:
[( 6 - 978 ) ÷ 978] x 100 = -99.39%
Formula
Percentage change = [(6 - 978) / 978] x 100
Subtract the new number by the original number
6 - 978 = -972
-972 ÷ 978 = -0.9938650306748467
-0.9938650306748467 x 100 = -99.39%