-50.19% is the change from 779 to 388
Calculation steps:
[( 388 - 779 ) ÷ 779] x 100 = -50.19%
Formula
Percentage change = [(388 - 779) / 779] x 100
Subtract the new number by the original number
388 - 779 = -391
-391 ÷ 779 = -0.5019255455712451
-0.5019255455712451 x 100 = -50.19%