30.82% is the change from 331 to 433
Calculation steps:
[( 433 - 331 ) ÷ 331] x 100 = 30.82%
Formula
Percentage change = [(433 - 331) / 331] x 100
Subtract the new number by the original number
433 - 331 = 102
102 ÷ 331 = 0.3081570996978852
0.3081570996978852 x 100 = 30.82%