9.39% is the change from 586 to 641
Calculation steps:
[( 641 - 586 ) ÷ 586] x 100 = 9.39%
Formula
Percentage change = [(641 - 586) / 586] x 100
Subtract the new number by the original number
641 - 586 = 55
55 ÷ 586 = 0.09385665529010238
0.09385665529010238 x 100 = 9.39%