21.23% is the change from 424 to 514
Calculation steps:
[( 514 - 424 ) ÷ 424] x 100 = 21.23%
Formula
Percentage change = [(514 - 424) / 424] x 100
Subtract the new number by the original number
514 - 424 = 90
90 ÷ 424 = 0.21226415094339623
0.21226415094339623 x 100 = 21.23%