33.53% is the change from 331 to 442
Calculation steps:
[( 442 - 331 ) ÷ 331] x 100 = 33.53%
Formula
Percentage change = [(442 - 331) / 331] x 100
Subtract the new number by the original number
442 - 331 = 111
111 ÷ 331 = 0.33534743202416917
0.33534743202416917 x 100 = 33.53%