13.85% is the change from 585 to 666
Calculation steps:
[( 666 - 585 ) ÷ 585] x 100 = 13.85%
Formula
Percentage change = [(666 - 585) / 585] x 100
Subtract the new number by the original number
666 - 585 = 81
81 ÷ 585 = 0.13846153846153847
0.13846153846153847 x 100 = 13.85%