12.82% is the change from 585 to 660
Calculation steps:
[( 660 - 585 ) ÷ 585] x 100 = 12.82%
Formula
Percentage change = [(660 - 585) / 585] x 100
Subtract the new number by the original number
660 - 585 = 75
75 ÷ 585 = 0.1282051282051282
0.1282051282051282 x 100 = 12.82%