$\backslash$table$[[,$Case $1,$Case $2,$Case $3,$Case $4],[$Units sold,,$10,000,,,,19,600,,4,000],[$Sales$,$$$,260,000,$$$,432,000,,,$$$,104,000],[$Variable expenses,,$170,000,,,,215,600,,],[$Fixed expenses,,$94,000,,172,000,,,,91,000],[$Net operating income $($loss$),,,$$$,58,400,$$$,116,000,$$$,(67,000)],[$Contribution margin per unit,,,$$,16,$$$,10,,]]$Fill in the missing amounts in each of the eight case situations below. Each case is independent of the others.

Required:

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

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