-32.03% is the change from 409 to 278
Calculation steps:
[( 278 - 409 ) ÷ 409] x 100 = -32.03%
Formula
Percentage change = [(278 - 409) / 409] x 100
Subtract the new number by the original number
278 - 409 = -131
-131 ÷ 409 = -0.3202933985330073
-0.3202933985330073 x 100 = -32.03%