315.69% is the change from 102 to 424
Calculation steps:
[( 424 - 102 ) ÷ 102] x 100 = 315.69%
Formula
Percentage change = [(424 - 102) / 102] x 100
Subtract the new number by the original number
424 - 102 = 322
322 ÷ 102 = 3.156862745098039
3.156862745098039 x 100 = 315.69%