10.13% is the change from 306 to 337
Calculation steps:
[( 337 - 306 ) ÷ 306] x 100 = 10.13%
Formula
Percentage change = [(337 - 306) / 306] x 100
Subtract the new number by the original number
337 - 306 = 31
31 ÷ 306 = 0.10130718954248366
0.10130718954248366 x 100 = 10.13%