9.2% is the change from 587 to 641
Calculation steps:
[( 641 - 587 ) ÷ 587] x 100 = 9.2%
Formula
Percentage change = [(641 - 587) / 587] x 100
Subtract the new number by the original number
641 - 587 = 54
54 ÷ 587 = 0.0919931856899489
0.0919931856899489 x 100 = 9.2%