Required:

a$.$ Assume that only one product is being sold in each of the four following case situations:

b$.$ Assume that more than one product is being sold in each of the four following case situations:

Complete this question by entering your answers in the tabs below.

Required $A$

Required B

Assume that more than one product is being sold in each of the four following case situations: $($Loss amounts sign.$)$

$\backslash$table$[[,$Case $1,$Case $2,$Case $4,,],[$Sales$,$$$,442,000,,$$$,198,000,,,297,000],[$Variable expenses,,,$128,700,,,77,220,,],[$Contribution margin,,,,,,,,$],[$Fixed expenses,,,,$64,000,,473,000,,],[$Net operating income $($loss$),$$$,43,540,,,,84,600,$$$,(9,220)$