10.5% is the change from 581 to 642
Calculation steps:
[( 642 - 581 ) ÷ 581] x 100 = 10.5%
Formula
Percentage change = [(642 - 581) / 581] x 100
Subtract the new number by the original number
642 - 581 = 61
61 ÷ 581 = 0.10499139414802065
0.10499139414802065 x 100 = 10.5%