-48.53% is the change from 985 to 507
Calculation steps:
[( 507 - 985 ) ÷ 985] x 100 = -48.53%
Formula
Percentage change = [(507 - 985) / 985] x 100
Subtract the new number by the original number
507 - 985 = -478
-478 ÷ 985 = -0.4852791878172589
-0.4852791878172589 x 100 = -48.53%