38.49% is the change from 239 to 331
Calculation steps:
[( 331 - 239 ) ÷ 239] x 100 = 38.49%
Formula
Percentage change = [(331 - 239) / 239] x 100
Subtract the new number by the original number
331 - 239 = 92
92 ÷ 239 = 0.38493723849372385
0.38493723849372385 x 100 = 38.49%