10.9% is the change from 312 to 346
Calculation steps:
[( 346 - 312 ) ÷ 312] x 100 = 10.9%
Formula
Percentage change = [(346 - 312) / 312] x 100
Subtract the new number by the original number
346 - 312 = 34
34 ÷ 312 = 0.10897435897435898
0.10897435897435898 x 100 = 10.9%