30800% is the change from 2 to 618
Calculation steps:
[( 618 - 2 ) ÷ 2] x 100 = 30800%
Formula
Percentage change = [(618 - 2) / 2] x 100
Subtract the new number by the original number
618 - 2 = 616
616 ÷ 2 = 308
308 x 100 = 30800%
Example