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.)

Required:

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

	Case #1	Case #2	Case #3	Case #4
Unit sold	10,000		10,000	10,000
Sales	$160,000	$100,000		$280,000
Variable expenses	80,000		60,000
Fixed expenses	44,000	34,000		150,000
Operating income (loss)		$8,000	$30,000	$(10,000)
Contribution margin per unit		$10	$13

b. Assume that more than one product is being sold in each of the following four case situations: (Enter "Contribution margin ratio" in percent. Round your final answers to the nearest whole dollar amount.)

	Case #1	Case #2	Case #3	Case #4
Sales	$400,000	$420,000		$500,000
Variable expenses		252,000		360,000
Fixed expenses		105,000	100,000
Operating income (loss)	$6,600		$20,000	$(4,200)
Average contribution margin (percentage)	30%		60%