9.91% is the change from 585 to 643
Calculation steps:
[( 643 - 585 ) ÷ 585] x 100 = 9.91%
Formula
Percentage change = [(643 - 585) / 585] x 100
Subtract the new number by the original number
643 - 585 = 58
58 ÷ 585 = 0.09914529914529914
0.09914529914529914 x 100 = 9.91%