Fill in the missing amounts in each of the eight case situations below. Each case is independent of the others. (Hint: One way to find the missing amounts would be to prepare a contribution format income statement for each case, enter the known data, and then compute the missing items.)

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

	Case #1	Case #2	Case #3	Case #4
Unit sold	8,100		19,500	4,900
Sales	$226,800	$397,300		$151,900
Variable expenses	113,400		253,500
Fixed expenses	81,000	166,000		91,000
Net operating income (loss)		$94,300	$137,500	$(27,300)
Contribution margin per unit		$19	$11

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

	Case #1	Case #2	Case #3	Case #4
Sales	$441,000	$203,000		$301,000
Variable expenses		140,070		84,280
Fixed expenses		57,000	473,000
Net operating income (loss)	$74,220		$109,660	$(12,280)
Contribution margin ratio (percent)	42%		83%