-13.87% is the change from 584 to 503
Calculation steps:
[( 503 - 584 ) ÷ 584] x 100 = -13.87%
Formula
Percentage change = [(503 - 584) / 584] x 100
Subtract the new number by the original number
503 - 584 = -81
-81 ÷ 584 = -0.1386986301369863
-0.1386986301369863 x 100 = -13.87%