129.41% is the change from 17 to 39
Calculation steps:
[( 39 - 17 ) ÷ 17] x 100 = 129.41%
Formula
Percentage change = [(39 - 17) / 17] x 100
Subtract the new number by the original number
39 - 17 = 22
22 ÷ 17 = 1.2941176470588236
1.2941176470588236 x 100 = 129.41%