-49.94% is the change from 779 to 390
Calculation steps:
[( 390 - 779 ) ÷ 779] x 100 = -49.94%
Formula
Percentage change = [(390 - 779) / 779] x 100
Subtract the new number by the original number
390 - 779 = -389
-389 ÷ 779 = -0.4993581514762516
-0.4993581514762516 x 100 = -49.94%