-4.48% is the change from 581 to 555
Calculation steps:
[( 555 - 581 ) ÷ 581] x 100 = -4.48%
Formula
Percentage change = [(555 - 581) / 581] x 100
Subtract the new number by the original number
555 - 581 = -26
-26 ÷ 581 = -0.04475043029259897
-0.04475043029259897 x 100 = -4.48%