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.

Required $A$

Required B

Assume that more than 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 $4],[$Sales$,$$$,450,000,,$$$,203,000,,,,,$$$,299,000,],[$Variable expenses,,,,,$138,040,,,,,,86,710,],[$Contribution margin,,,,,,,,,,,,$],[$Fixed expenses,,,,,$62,000,,,471,000,,,,],[$Net operating income $($loss$),$$$,79,000,,,,,$$$,111,660,,$$$,(5,710),],[$Contribution margin ratio $($percent$),,44,\%,,,\%,,83,\%,,,\%$