Please help with NCI ratio.

Direct Computation of Nonoperating Return with Noncontrolling Interest e. Compute the noncontrolling interest ratio ( NCl ratio). \begin{tabular}{|c|c|c|} \hline \multicolumn{3}{|c|}{\begin{tabular}{c} Costco Wholesale Corporation \\ Consolidated Balance Sheets \end{tabular}} \\ \hline (\$ millions, except par value and share data) & \begin{tabular}{c} September \\ 2, 2018 \end{tabular} & \begin{tabular}{l} September \\ 3, 2017 \end{tabular} \\ \hline \multicolumn{3}{|l|}{ Current assets } \\ \hline Cash and cash equivalents & $6,055 & $4,546 \\ \hline Short-term investments & 1,204 & 1,233 \\ \hline Receivables, net & 1,669 & 1,432 \\ \hline Merchandise inventories & 11,040 & 9,834 \\ \hline Other current assets & 321 & 272 \\ \hline Total current assets & 20,289 & 17,317 \\ \hline Net property and equipment & 19,681 & 18,161 \\ \hline Other assets & 860 & 869 \\ \hline Total assets & $40,830 & $36,347 \\ \hline \multicolumn{3}{|l|}{ Current liabilities } \\ \hline Accounts payable & $11,237 & $9,608 \\ \hline Accrued salaries and benefits & 2,994 & 2,703 \\ \hline Accrued member rewards & 1,057 & 961 \\ \hline Deferred membership fees & 1,624 & 1,498 \\ \hline Other current liabilities & 3,014 & 2,725 \\ \hline Total current liabilities & 19,926 & 17,495 \\ \hline Long-term debt & 6,487 & 6,573 \\ \hline Other liabilities & 1,314 & 1,200 \\ \hline Total liabilities & 27,727 & 25,268 \\ \hline \multicolumn{3}{|l|}{ Equity } \\ \hline Preferred stock, $0.01 par value: & 0 & 0 \\ \hline Common stock, $0.01 par value: & 4 & 4 \\ \hline Additional paid-in-capital & 6,107 & 5,800 \\ \hline Accumulated other comprehensive loss & (1,199) & (1,014) \\ \hline Retained earnings & 7,887 & 5,988 \\ \hline Total Costco stockholders' equity & 12,799 & 10,778 \\ \hline Noncontrolling interests & 304 & 301 \\ \hline Total equity & 13,103 & 11,079 \\ \hline Total liabilities and equity & $40,830 & $36,347 \\ \hline Combined federal and state statutory tax rate & 22.00% & \\ \hline ROE & 26.59% & \\ \hline RNOA & 26.51% & \\ \hline \end{tabular}