-57.19% is the change from 598 to 256
Calculation steps:
[( 256 - 598 ) ÷ 598] x 100 = -57.19%
Formula
Percentage change = [(256 - 598) / 598] x 100
Subtract the new number by the original number
256 - 598 = -342
-342 ÷ 598 = -0.5719063545150501
-0.5719063545150501 x 100 = -57.19%