53.33% is the change from 270 to 414
Calculation steps:
[( 414 - 270 ) ÷ 270] x 100 = 53.33%
Formula
Percentage change = [(414 - 270) / 270] x 100
Subtract the new number by the original number
414 - 270 = 144
144 ÷ 270 = 0.5333333333333333
0.5333333333333333 x 100 = 53.33%