-13.7% is the change from 584 to 504
Calculation steps:
[( 504 - 584 ) ÷ 584] x 100 = -13.7%
Formula
Percentage change = [(504 - 584) / 584] x 100
Subtract the new number by the original number
504 - 584 = -80
-80 ÷ 584 = -0.136986301369863
-0.136986301369863 x 100 = -13.7%