123.08% is the change from 13 to 29
Calculation steps:
[( 29 - 13 ) ÷ 13] x 100 = 123.08%
Formula
Percentage change = [(29 - 13) / 13] x 100
Subtract the new number by the original number
29 - 13 = 16
16 ÷ 13 = 1.2307692307692308
1.2307692307692308 x 100 = 123.08%