-22% is the change from 409 to 319
Calculation steps:
[( 319 - 409 ) ÷ 409] x 100 = -22%
Formula
Percentage change = [(319 - 409) / 409] x 100
Subtract the new number by the original number
319 - 409 = -90
-90 ÷ 409 = -0.2200488997555012
-0.2200488997555012 x 100 = -22%