-48.57% is the change from 978 to 503
Calculation steps:
[( 503 - 978 ) ÷ 978] x 100 = -48.57%
Formula
Percentage change = [(503 - 978) / 978] x 100
Subtract the new number by the original number
503 - 978 = -475
-475 ÷ 978 = -0.48568507157464214
-0.48568507157464214 x 100 = -48.57%