Calculate the missing amounts for each of the following firms: (Do not round your intermediate calculations. Negative amount should be indicated by a minus sign. Round to the nearest whole number for the Units Sold column. For the remaining columns 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	10,600	$ 25	$	$ 95,000	$ 41,300	$
Firm B	8,700		16		65,100	33,160
Firm C		8.2	3.6	10,400		(6,880)
Firm D	4,420		50	41,610	49,990