28.7% is the change from 331 to 426
Calculation steps:
[( 426 - 331 ) ÷ 331] x 100 = 28.7%
Formula
Percentage change = [(426 - 331) / 331] x 100
Subtract the new number by the original number
426 - 331 = 95
95 ÷ 331 = 0.28700906344410876
0.28700906344410876 x 100 = 28.7%