13.7% is the change from 584 to 664
Calculation steps:
[( 664 - 584 ) ÷ 584] x 100 = 13.7%
Formula
Percentage change = [(664 - 584) / 584] x 100
Subtract the new number by the original number
664 - 584 = 80
80 ÷ 584 = 0.136986301369863
0.136986301369863 x 100 = 13.7%