-28.57% is the change from 357 to 255
Calculation steps:
[( 255 - 357 ) ÷ 357] x 100 = -28.57%
Formula
Percentage change = [(255 - 357) / 357] x 100
Subtract the new number by the original number
255 - 357 = -102
-102 ÷ 357 = -0.2857142857142857
-0.2857142857142857 x 100 = -28.57%