58.14% is the change from 129 to 204
Calculation steps:
[( 204 - 129 ) ÷ 129] x 100 = 58.14%
Formula
Percentage change = [(204 - 129) / 129] x 100
Subtract the new number by the original number
204 - 129 = 75
75 ÷ 129 = 0.5813953488372093
0.5813953488372093 x 100 = 58.14%