Westport Chemicals, one of Northern Oklahoma's premier chemical firms, is evaluating a proposal to sell its titanium dioxide operations as part of a long-run strategic plan to divest itself of its commodity chemical operations. Westport's CFO believes the firm's titanium dioxide operations can be sold for $2.4billion. The CFO projects that Westport's the future yearly sales of titanium dioxide would be $1.6 billion per year in perpetuity. The firm's profit margin on the production and sale of titanium dioxide has averaged 15 percent of sales over the last 20 years. The Vice-President in charge of the commodity chemicals division believes that excess production capacity of Westport's Honduran competitors will prevent any improvement in margins for the foreseeable future. Assuming that Westport has a 20 percent tax rate and an 11 percent opportunity cost of capital, determine the internal rate of return for the proposed sale of Westport's titanium dioxide operations and explain whether or not Westport should sell off its titanium dioxide operations.