135.29% is the change from 34 to 80
Calculation steps:
[( 80 - 34 ) ÷ 34] x 100 = 135.29%
Formula
Percentage change = [(80 - 34) / 34] x 100
Subtract the new number by the original number
80 - 34 = 46
46 ÷ 34 = 1.3529411764705883
1.3529411764705883 x 100 = 135.29%