-16.53% is the change from 490 to 409
Calculation steps:
[( 409 - 490 ) ÷ 490] x 100 = -16.53%
Formula
Percentage change = [(409 - 490) / 490] x 100
Subtract the new number by the original number
409 - 490 = -81
-81 ÷ 490 = -0.1653061224489796
-0.1653061224489796 x 100 = -16.53%