8.39% is the change from 310 to 336
Calculation steps:
[( 336 - 310 ) ÷ 310] x 100 = 8.39%
Formula
Percentage change = [(336 - 310) / 310] x 100
Subtract the new number by the original number
336 - 310 = 26
26 ÷ 310 = 0.08387096774193549
0.08387096774193549 x 100 = 8.39%