-34.45% is the change from 389 to 255
Calculation steps:
[( 255 - 389 ) ÷ 389] x 100 = -34.45%
Formula
Percentage change = [(255 - 389) / 389] x 100
Subtract the new number by the original number
255 - 389 = -134
-134 ÷ 389 = -0.3444730077120823
-0.3444730077120823 x 100 = -34.45%