-56.26% is the change from 583 to 255
Calculation steps:
[( 255 - 583 ) ÷ 583] x 100 = -56.26%
Formula
Percentage change = [(255 - 583) / 583] x 100
Subtract the new number by the original number
255 - 583 = -328
-328 ÷ 583 = -0.5626072041166381
-0.5626072041166381 x 100 = -56.26%