24.5% is the change from 404 to 503
Calculation steps:
[( 503 - 404 ) ÷ 404] x 100 = 24.5%
Formula
Percentage change = [(503 - 404) / 404] x 100
Subtract the new number by the original number
503 - 404 = 99
99 ÷ 404 = 0.24504950495049505
0.24504950495049505 x 100 = 24.5%