Charles Schwab Corporation 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 ServicesRevenues $4,771 $4,597 Income from operations 1,681 1,660 Depreciation 171 154Estimate the contribution margin for each segment, assuming that depreciation represents the majority of fixed costs. Investor Services Advisor Services (in millions) (in millions) Estimated contribution margin $1,681 $1,660 If Schwab decided to sell its Advisor Services business to another company, estimate how much operating income would decline under the following assumptions. Assume the fixed costs that serve the Advisor Services business would not be sold but would be used by the other sector: $1,660 million.Assume the fixed assets were "sold": $ 1,506 million