50.86% is the change from 409 to 617
Calculation steps:
[( 617 - 409 ) ÷ 409] x 100 = 50.86%
Formula
Percentage change = [(617 - 409) / 409] x 100
Subtract the new number by the original number
617 - 409 = 208
208 ÷ 409 = 0.508557457212714
0.508557457212714 x 100 = 50.86%