40.74% is the change from 270 to 380
Calculation steps:
[( 380 - 270 ) ÷ 270] x 100 = 40.74%
Formula
Percentage change = [(380 - 270) / 270] x 100
Subtract the new number by the original number
380 - 270 = 110
110 ÷ 270 = 0.4074074074074074
0.4074074074074074 x 100 = 40.74%