30.19% is the change from 308 to 401
Calculation steps:
[( 401 - 308 ) ÷ 308] x 100 = 30.19%
Formula
Percentage change = [(401 - 308) / 308] x 100
Subtract the new number by the original number
401 - 308 = 93
93 ÷ 308 = 0.30194805194805197
0.30194805194805197 x 100 = 30.19%