42.59% is the change from 270 to 385
Calculation steps:
[( 385 - 270 ) ÷ 270] x 100 = 42.59%
Formula
Percentage change = [(385 - 270) / 270] x 100
Subtract the new number by the original number
385 - 270 = 115
115 ÷ 270 = 0.42592592592592593
0.42592592592592593 x 100 = 42.59%