-56.24% is the change from 978 to 428
Calculation steps:
[( 428 - 978 ) ÷ 978] x 100 = -56.24%
Formula
Percentage change = [(428 - 978) / 978] x 100
Subtract the new number by the original number
428 - 978 = -550
-550 ÷ 978 = -0.5623721881390593
-0.5623721881390593 x 100 = -56.24%