29.1% is the change from 134 to 173
Calculation steps:
[( 173 - 134 ) ÷ 134] x 100 = 29.1%
Formula
Percentage change = [(173 - 134) / 134] x 100
Subtract the new number by the original number
173 - 134 = 39
39 ÷ 134 = 0.291044776119403
0.291044776119403 x 100 = 29.1%