-30.32% is the change from 409 to 285
Calculation steps:
[( 285 - 409 ) ÷ 409] x 100 = -30.32%
Formula
Percentage change = [(285 - 409) / 409] x 100
Subtract the new number by the original number
285 - 409 = -124
-124 ÷ 409 = -0.30317848410757947
-0.30317848410757947 x 100 = -30.32%