Segment analysis for a service company Charles Schwab Corporation (SCHW) is one of the more innovative brokerage and financial service companies in the United States. The company recently provided information about its major business segments as follows (in millions): Investor Advisor Services Services Revenues $5,411 $2,067 Operating income 2,031 962 Depreciation 180 54 segment includes the same a. The segment serves the retail customer, you and me. These are the brokerage, Internet, and mutual fund services used by individual Investors. The services provided for financial institutions, such as banks, mutual fund managers, insurance companies, and pension plan administrators. b. Indicate whether the following costs are a "Variable Cost" or a "Fixed Cost" in the "Investor Services" segment. 1. Commissions to brokers 2. Fees paid to exchanges for executing trades 3. Depreciation on brokerage offices 4. Transaction fees incurred by Schwab mutual funds to purchase and sell shares 5. Property taxes on brokerage offices 6. Depreciation on brokerage office equipment, such as computers and computer networks 7. Advertising c. Estimate the contribution margin for each segment, assuming depreciation represents the majority of fixed costs. Investor Services (in millions) Advisor Services (in millions) Estimated contribution margin $ $ d. If Schwab decided to sell its "Advisor Services" accounts to another company, estimate how much operating income would decline under the following assumptions. Assume the fixed costs that serve Advisor investors would not be sold but would be used by the other sector: $ million Assume the fixed assets were "sold": $ million