-57.57% is the change from 601 to 255
Calculation steps:
[( 255 - 601 ) ÷ 601] x 100 = -57.57%
Formula
Percentage change = [(255 - 601) / 601] x 100
Subtract the new number by the original number
255 - 601 = -346
-346 ÷ 601 = -0.5757071547420965
-0.5757071547420965 x 100 = -57.57%