Can you please help me with the second part of question $2.$ Structuring a Keep$-$or$-$Drop Product Line Problem with Complementary Effects

Shown below is a segmented income statement for Hickory Company's three wooden flooring product lines:

$\backslash$table$[[,$Strip,Plank,Parquet,Total$],[$Sales revenue,$$400,000,$$$200,000,$$$300,000,$$$900,000$