-6.26% is the change from 623 to 584
Calculation steps:
[( 584 - 623 ) ÷ 623] x 100 = -6.26%
Formula
Percentage change = [(584 - 623) / 623] x 100
Subtract the new number by the original number
584 - 623 = -39
-39 ÷ 623 = -0.06260032102728733
-0.06260032102728733 x 100 = -6.26%