586.6% is the change from 97 to 666
Calculation steps:
[( 666 - 97 ) ÷ 97] x 100 = 586.6%
Formula
Percentage change = [(666 - 97) / 97] x 100
Subtract the new number by the original number
666 - 97 = 569
569 ÷ 97 = 5.865979381443299
5.865979381443299 x 100 = 586.6%