27.41% is the change from 270 to 344
Calculation steps:
[( 344 - 270 ) ÷ 270] x 100 = 27.41%
Formula
Percentage change = [(344 - 270) / 270] x 100
Subtract the new number by the original number
344 - 270 = 74
74 ÷ 270 = 0.2740740740740741
0.2740740740740741 x 100 = 27.41%