9.88% is the change from 587 to 645
Calculation steps:
[( 645 - 587 ) ÷ 587] x 100 = 9.88%
Formula
Percentage change = [(645 - 587) / 587] x 100
Subtract the new number by the original number
645 - 587 = 58
58 ÷ 587 = 0.09880749574105621
0.09880749574105621 x 100 = 9.88%