-39.78% is the change from 978 to 589
Calculation steps:
[( 589 - 978 ) ÷ 978] x 100 = -39.78%
Formula
Percentage change = [(589 - 978) / 978] x 100
Subtract the new number by the original number
589 - 978 = -389
-389 ÷ 978 = -0.39775051124744376
-0.39775051124744376 x 100 = -39.78%