-4.22% is the change from 427 to 409
Calculation steps:
[( 409 - 427 ) ÷ 427] x 100 = -4.22%
Formula
Percentage change = [(409 - 427) / 427] x 100
Subtract the new number by the original number
409 - 427 = -18
-18 ÷ 427 = -0.04215456674473068
-0.04215456674473068 x 100 = -4.22%