2196.55% is the change from 29 to 666
Calculation steps:
[( 666 - 29 ) ÷ 29] x 100 = 2196.55%
Formula
Percentage change = [(666 - 29) / 29] x 100
Subtract the new number by the original number
666 - 29 = 637
637 ÷ 29 = 21.96551724137931
21.96551724137931 x 100 = 2196.55%