Investor Institutional Services $3,228 514 148 segment serves the retail customer, you and me. These include brokerage, Internet, and mutual fund services. The managers, insurance companies, and pension plan administrators. offices. Investor Services s to another company, estimate how much operating income would decline under the following assumptions. ices" account emon Assume the fixed costs that serve insttutional would not be sold but would be used by the other sector: million Assume the fixed assets were "sold