15.67% is the change from 268 to 310
Calculation steps:
[( 310 - 268 ) ÷ 268] x 100 = 15.67%
Formula
Percentage change = [(310 - 268) / 268] x 100
Subtract the new number by the original number
310 - 268 = 42
42 ÷ 268 = 0.15671641791044777
0.15671641791044777 x 100 = 15.67%