Calculate the missing amounts for each of the following firms: (Negative amount should be indicated by a minus sign. Do not round your intermediate calculations. Round your answers to 2 decimal places. Omit the "$" sign in your response.)

	Units Sold	Selling Price	Variable Costs Per Unit	Contribution Margin	Fixed Costs	Operating Income (Loss)
Firm A	5,600	$ 12.00	$	$ 25,200	$ 20,300	$
Firm B	16,800		22.20		84,500	43,180
Firm C		7.30	3.20	28,700		(13,500)
Firm D	14,160		55.25	66,552	73,250