48.9% is the change from 409 to 609
Calculation steps:
[( 609 - 409 ) ÷ 409] x 100 = 48.9%
Formula
Percentage change = [(609 - 409) / 409] x 100
Subtract the new number by the original number
609 - 409 = 200
200 ÷ 409 = 0.4889975550122249
0.4889975550122249 x 100 = 48.9%