Fill in the missing amounts in each of the eight case situations below. Each case is independent of the others.

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.

Assume that onfy one product is being sold in each of the four following case situations: $($Loss amounts should be indicated by a minus sign.$)$

$\backslash$table$[[,$Case $1,$Case $2,$Case $3,$Case $4],[$Units sold,,$8,600,,,,19,700,,4,500],[$Sales :$,$$$,223,600,$$$,308,000,,,$$$,112,500],[$Variable expenses,,$163,400,,,,216,700,,5],[$Contribution margin,,$1,,-1,,,,42],[$Fixed expenses,,$85,000,,177,000,,,$D$,90,000],[$Net operating income $($loss$),,,$$$,(9,000),$$$,120,000,$$$,(67,500)$