42.22% is the change from 270 to 384
Calculation steps:
[( 384 - 270 ) ÷ 270] x 100 = 42.22%
Formula
Percentage change = [(384 - 270) / 270] x 100
Subtract the new number by the original number
384 - 270 = 114
114 ÷ 270 = 0.4222222222222222
0.4222222222222222 x 100 = 42.22%