144.12% is the change from 34 to 83
Calculation steps:
[( 83 - 34 ) ÷ 34] x 100 = 144.12%
Formula
Percentage change = [(83 - 34) / 34] x 100
Subtract the new number by the original number
83 - 34 = 49
49 ÷ 34 = 1.4411764705882353
1.4411764705882353 x 100 = 144.12%