49.39% is the change from 409 to 611
Calculation steps:
[( 611 - 409 ) ÷ 409] x 100 = 49.39%
Formula
Percentage change = [(611 - 409) / 409] x 100
Subtract the new number by the original number
611 - 409 = 202
202 ÷ 409 = 0.4938875305623472
0.4938875305623472 x 100 = 49.39%