39.08% is the change from 238 to 331
Calculation steps:
[( 331 - 238 ) ÷ 238] x 100 = 39.08%
Formula
Percentage change = [(331 - 238) / 238] x 100
Subtract the new number by the original number
331 - 238 = 93
93 ÷ 238 = 0.3907563025210084
0.3907563025210084 x 100 = 39.08%