19.56% is the change from 409 to 489
Calculation steps:
[( 489 - 409 ) ÷ 409] x 100 = 19.56%
Formula
Percentage change = [(489 - 409) / 409] x 100
Subtract the new number by the original number
489 - 409 = 80
80 ÷ 409 = 0.19559902200489
0.19559902200489 x 100 = 19.56%