Reviewing the financial statements of KRJ Enterprises $($all figures in $ millions$),$ you find the following items: average total debt for the year of $$489($$$439$ at the beginning, $$539$ at the end$),$ average total liabilities of $$680,$ average total equity of $$854,$ net income of $$174,$ and cash flow from operations of $$151.$ There are $51($million$)$ shares of common stock outstanding and the current price per share is $$36.$ Calculate the company$$s cash flow return on investment based on the market value of capital invested. Present your answer in percentage terms, rounded to one decimal place $($e$.$g$.,23\mathrm{.}4\%).$