21.52% is the change from 409 to 497
Calculation steps:
[( 497 - 409 ) ÷ 409] x 100 = 21.52%
Formula
Percentage change = [(497 - 409) / 409] x 100
Subtract the new number by the original number
497 - 409 = 88
88 ÷ 409 = 0.21515892420537897
0.21515892420537897 x 100 = 21.52%