9.91% is the change from 656 to 721
Calculation steps:
[( 721 - 656 ) ÷ 656] x 100 = 9.91%
Formula
Percentage change = [(721 - 656) / 656] x 100
Subtract the new number by the original number
721 - 656 = 65
65 ÷ 656 = 0.09908536585365854
0.09908536585365854 x 100 = 9.91%