24.56% is the change from 399 to 497
Calculation steps:
[( 497 - 399 ) ÷ 399] x 100 = 24.56%
Formula
Percentage change = [(497 - 399) / 399] x 100
Subtract the new number by the original number
497 - 399 = 98
98 ÷ 399 = 0.24561403508771928
0.24561403508771928 x 100 = 24.56%