8.71% is the change from 310 to 337
Calculation steps:
[( 337 - 310 ) ÷ 310] x 100 = 8.71%
Formula
Percentage change = [(337 - 310) / 310] x 100
Subtract the new number by the original number
337 - 310 = 27
27 ÷ 310 = 0.08709677419354839
0.08709677419354839 x 100 = 8.71%