41.76% is the change from 91 to 129
Calculation steps:
[( 129 - 91 ) ÷ 91] x 100 = 41.76%
Formula
Percentage change = [(129 - 91) / 91] x 100
Subtract the new number by the original number
129 - 91 = 38
38 ÷ 91 = 0.4175824175824176
0.4175824175824176 x 100 = 41.76%