9.74% is the change from 585 to 642
Calculation steps:
[( 642 - 585 ) ÷ 585] x 100 = 9.74%
Formula
Percentage change = [(642 - 585) / 585] x 100
Subtract the new number by the original number
642 - 585 = 57
57 ÷ 585 = 0.09743589743589744
0.09743589743589744 x 100 = 9.74%