14.02% is the change from 271 to 309
Calculation steps:
[( 309 - 271 ) ÷ 271] x 100 = 14.02%
Formula
Percentage change = [(309 - 271) / 271] x 100
Subtract the new number by the original number
309 - 271 = 38
38 ÷ 271 = 0.14022140221402213
0.14022140221402213 x 100 = 14.02%