18.02% is the change from 566 to 668
Calculation steps:
[( 668 - 566 ) ÷ 566] x 100 = 18.02%
Formula
Percentage change = [(668 - 566) / 566] x 100
Subtract the new number by the original number
668 - 566 = 102
102 ÷ 566 = 0.18021201413427562
0.18021201413427562 x 100 = 18.02%