12.87% is the change from 272 to 307
Calculation steps:
[( 307 - 272 ) ÷ 272] x 100 = 12.87%
Formula
Percentage change = [(307 - 272) / 272] x 100
Subtract the new number by the original number
307 - 272 = 35
35 ÷ 272 = 0.12867647058823528
0.12867647058823528 x 100 = 12.87%