121.46% is the change from 424 to 939
Calculation steps:
[( 939 - 424 ) ÷ 424] x 100 = 121.46%
Formula
Percentage change = [(939 - 424) / 424] x 100
Subtract the new number by the original number
939 - 424 = 515
515 ÷ 424 = 1.2146226415094339
1.2146226415094339 x 100 = 121.46%