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.) Contribution Fixed Costs Income (Loss) Selling Units Sold Price Operating Costs Per Un Margin Firm A Firm B Firm C Firm D 11,300 S 28.00 8,400 S 108,200 42,100 64,200 32,120 17.00 3.70 54.00 7.80 10,700 (5,050) 4,620 41,520 47,830