15300% is the change from 2 to 308
Calculation steps:
[( 308 - 2 ) ÷ 2] x 100 = 15300%
Formula
Percentage change = [(308 - 2) / 2] x 100
Subtract the new number by the original number
308 - 2 = 306
306 ÷ 2 = 153
153 x 100 = 15300%
Example