17.81% is the change from 612 to 721
Calculation steps:
[( 721 - 612 ) ÷ 612] x 100 = 17.81%
Formula
Percentage change = [(721 - 612) / 612] x 100
Subtract the new number by the original number
721 - 612 = 109
109 ÷ 612 = 0.1781045751633987
0.1781045751633987 x 100 = 17.81%