39.58% is the change from 331 to 462
Calculation steps:
[( 462 - 331 ) ÷ 331] x 100 = 39.58%
Formula
Percentage change = [(462 - 331) / 331] x 100
Subtract the new number by the original number
462 - 331 = 131
131 ÷ 331 = 0.3957703927492447
0.3957703927492447 x 100 = 39.58%