18.16% is the change from 424 to 501
Calculation steps:
[( 501 - 424 ) ÷ 424] x 100 = 18.16%
Formula
Percentage change = [(501 - 424) / 424] x 100
Subtract the new number by the original number
501 - 424 = 77
77 ÷ 424 = 0.18160377358490565
0.18160377358490565 x 100 = 18.16%