38.39% is the change from 323 to 447
Calculation steps:
[( 447 - 323 ) ÷ 323] x 100 = 38.39%
Formula
Percentage change = [(447 - 323) / 323] x 100
Subtract the new number by the original number
447 - 323 = 124
124 ÷ 323 = 0.38390092879256965
0.38390092879256965 x 100 = 38.39%