-55.21% is the change from 978 to 438
Calculation steps:
[( 438 - 978 ) ÷ 978] x 100 = -55.21%
Formula
Percentage change = [(438 - 978) / 978] x 100
Subtract the new number by the original number
438 - 978 = -540
-540 ÷ 978 = -0.5521472392638037
-0.5521472392638037 x 100 = -55.21%