5.04% is the change from 496 to 521
Calculation steps:
[( 521 - 496 ) ÷ 496] x 100 = 5.04%
Formula
Percentage change = [(521 - 496) / 496] x 100
Subtract the new number by the original number
521 - 496 = 25
25 ÷ 496 = 0.05040322580645161
0.05040322580645161 x 100 = 5.04%