222.22% is the change from 9 to 29
Calculation steps:
[( 29 - 9 ) ÷ 9] x 100 = 222.22%
Formula
Percentage change = [(29 - 9) / 9] x 100
Subtract the new number by the original number
29 - 9 = 20
20 ÷ 9 = 2.2222222222222223
2.2222222222222223 x 100 = 222.22%