-30.56% is the change from 409 to 284
Calculation steps:
[( 284 - 409 ) ÷ 409] x 100 = -30.56%
Formula
Percentage change = [(284 - 409) / 409] x 100
Subtract the new number by the original number
284 - 409 = -125
-125 ÷ 409 = -0.3056234718826406
-0.3056234718826406 x 100 = -30.56%