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$)$:

$\backslash$table$[[,\backslash$table$[[$Investor$],[$Services$]],\backslash$table$[[$Advisor$],[$Services$]]],[$Revenues$,$$$2,780,$$$1,643$