10.32% is the change from 310 to 342
Calculation steps:
[( 342 - 310 ) ÷ 310] x 100 = 10.32%
Formula
Percentage change = [(342 - 310) / 310] x 100
Subtract the new number by the original number
342 - 310 = 32
32 ÷ 310 = 0.1032258064516129
0.1032258064516129 x 100 = 10.32%