-50.19% is the change from 783 to 390
Calculation steps:
[( 390 - 783 ) ÷ 783] x 100 = -50.19%
Formula
Percentage change = [(390 - 783) / 783] x 100
Subtract the new number by the original number
390 - 783 = -393
-393 ÷ 783 = -0.5019157088122606
-0.5019157088122606 x 100 = -50.19%