-34.19% is the change from 389 to 256
Calculation steps:
[( 256 - 389 ) ÷ 389] x 100 = -34.19%
Formula
Percentage change = [(256 - 389) / 389] x 100
Subtract the new number by the original number
256 - 389 = -133
-133 ÷ 389 = -0.34190231362467866
-0.34190231362467866 x 100 = -34.19%