-40.39% is the change from 978 to 583
Calculation steps:
[( 583 - 978 ) ÷ 978] x 100 = -40.39%
Formula
Percentage change = [(583 - 978) / 978] x 100
Subtract the new number by the original number
583 - 978 = -395
-395 ÷ 978 = -0.40388548057259716
-0.40388548057259716 x 100 = -40.39%