4.83% is the change from 497 to 521
Calculation steps:
[( 521 - 497 ) ÷ 497] x 100 = 4.83%
Formula
Percentage change = [(521 - 497) / 497] x 100
Subtract the new number by the original number
521 - 497 = 24
24 ÷ 497 = 0.0482897384305835
0.0482897384305835 x 100 = 4.83%