12.32% is the change from 276 to 310
Calculation steps:
[( 310 - 276 ) ÷ 276] x 100 = 12.32%
Formula
Percentage change = [(310 - 276) / 276] x 100
Subtract the new number by the original number
310 - 276 = 34
34 ÷ 276 = 0.12318840579710146
0.12318840579710146 x 100 = 12.32%