Calculate the missing amounts for each of the following firms (Do not round intermediate calculations. Round "Selling Price and "Variable Costs Per Unit" to 2 decimal places. Enter any negative amount with a minus sign.) Units Sold Selling Price Variable Costs Per Unit Operating Income (Loss) Firm A 24.00 10,600 $ 8,000 Contribution Margin Fixed Costs $ 118,700 $ 40,300 64,400 10,000 40,250 46,320 Firm B 19.00 Firm C 7.40 32,020 (6,820) 4.50 Firm D 4,610 52.00