-42.69% is the change from 677 to 388
Calculation steps:
[( 388 - 677 ) ÷ 677] x 100 = -42.69%
Formula
Percentage change = [(388 - 677) / 677] x 100
Subtract the new number by the original number
388 - 677 = -289
-289 ÷ 677 = -0.42688330871491875
-0.42688330871491875 x 100 = -42.69%