39.39% is the change from 424 to 591
Calculation steps:
[( 591 - 424 ) ÷ 424] x 100 = 39.39%
Formula
Percentage change = [(591 - 424) / 424] x 100
Subtract the new number by the original number
591 - 424 = 167
167 ÷ 424 = 0.3938679245283019
0.3938679245283019 x 100 = 39.39%