-48.9% is the change from 409 to 209
Calculation steps:
[( 209 - 409 ) ÷ 409] x 100 = -48.9%
Formula
Percentage change = [(209 - 409) / 409] x 100
Subtract the new number by the original number
209 - 409 = -200
-200 ÷ 409 = -0.4889975550122249
-0.4889975550122249 x 100 = -48.9%