-2.39% is the change from 419 to 409
Calculation steps:
[( 409 - 419 ) ÷ 419] x 100 = -2.39%
Formula
Percentage change = [(409 - 419) / 419] x 100
Subtract the new number by the original number
409 - 419 = -10
-10 ÷ 419 = -0.02386634844868735
-0.02386634844868735 x 100 = -2.39%