-28.17% is the change from 355 to 255
Calculation steps:
[( 255 - 355 ) ÷ 355] x 100 = -28.17%
Formula
Percentage change = [(255 - 355) / 355] x 100
Subtract the new number by the original number
255 - 355 = -100
-100 ÷ 355 = -0.28169014084507044
-0.28169014084507044 x 100 = -28.17%