40.32% is the change from 310 to 435
Calculation steps:
[( 435 - 310 ) ÷ 310] x 100 = 40.32%
Formula
Percentage change = [(435 - 310) / 310] x 100
Subtract the new number by the original number
435 - 310 = 125
125 ÷ 310 = 0.4032258064516129
0.4032258064516129 x 100 = 40.32%