23.26% is the change from 331 to 408
Calculation steps:
[( 408 - 331 ) ÷ 331] x 100 = 23.26%
Formula
Percentage change = [(408 - 331) / 331] x 100
Subtract the new number by the original number
408 - 331 = 77
77 ÷ 331 = 0.2326283987915408
0.2326283987915408 x 100 = 23.26%