128.89% is the change from 270 to 618
Calculation steps:
[( 618 - 270 ) ÷ 270] x 100 = 128.89%
Formula
Percentage change = [(618 - 270) / 270] x 100
Subtract the new number by the original number
618 - 270 = 348
348 ÷ 270 = 1.288888888888889
1.288888888888889 x 100 = 128.89%