18.72% is the change from 561 to 666
Calculation steps:
[( 666 - 561 ) ÷ 561] x 100 = 18.72%
Formula
Percentage change = [(666 - 561) / 561] x 100
Subtract the new number by the original number
666 - 561 = 105
105 ÷ 561 = 0.18716577540106952
0.18716577540106952 x 100 = 18.72%