-5.29% is the change from 586 to 555
Calculation steps:
[( 555 - 586 ) ÷ 586] x 100 = -5.29%
Formula
Percentage change = [(555 - 586) / 586] x 100
Subtract the new number by the original number
555 - 586 = -31
-31 ÷ 586 = -0.052901023890784986
-0.052901023890784986 x 100 = -5.29%