-55.94% is the change from 581 to 256
Calculation steps:
[( 256 - 581 ) ÷ 581] x 100 = -55.94%
Formula
Percentage change = [(256 - 581) / 581] x 100
Subtract the new number by the original number
256 - 581 = -325
-325 ÷ 581 = -0.5593803786574871
-0.5593803786574871 x 100 = -55.94%