13.5% is the change from 274 to 311
Calculation steps:
[( 311 - 274 ) ÷ 274] x 100 = 13.5%
Formula
Percentage change = [(311 - 274) / 274] x 100
Subtract the new number by the original number
311 - 274 = 37
37 ÷ 274 = 0.13503649635036497
0.13503649635036497 x 100 = 13.5%