17.67% is the change from 566 to 666
Calculation steps:
[( 666 - 566 ) ÷ 566] x 100 = 17.67%
Formula
Percentage change = [(666 - 566) / 566] x 100
Subtract the new number by the original number
666 - 566 = 100
100 ÷ 566 = 0.17667844522968199
0.17667844522968199 x 100 = 17.67%