-40.79% is the change from 581 to 344
Calculation steps:
[( 344 - 581 ) ÷ 581] x 100 = -40.79%
Formula
Percentage change = [(344 - 581) / 581] x 100
Subtract the new number by the original number
344 - 581 = -237
-237 ÷ 581 = -0.4079173838209983
-0.4079173838209983 x 100 = -40.79%