43.5% is the change from 331 to 475
Calculation steps:
[( 475 - 331 ) ÷ 331] x 100 = 43.5%
Formula
Percentage change = [(475 - 331) / 331] x 100
Subtract the new number by the original number
475 - 331 = 144
144 ÷ 331 = 0.4350453172205438
0.4350453172205438 x 100 = 43.5%