-48.16% is the change from 978 to 507
Calculation steps:
[( 507 - 978 ) ÷ 978] x 100 = -48.16%
Formula
Percentage change = [(507 - 978) / 978] x 100
Subtract the new number by the original number
507 - 978 = -471
-471 ÷ 978 = -0.4815950920245399
-0.4815950920245399 x 100 = -48.16%