-13.85% is the change from 585 to 504
Calculation steps:
[( 504 - 585 ) ÷ 585] x 100 = -13.85%
Formula
Percentage change = [(504 - 585) / 585] x 100
Subtract the new number by the original number
504 - 585 = -81
-81 ÷ 585 = -0.13846153846153847
-0.13846153846153847 x 100 = -13.85%