1. Compute profit margin
2. Compute gross profit margin (Please explain if we need to compute gross profit divided by net sales or total revenue?)
3. Return on equity
4. Inventory turnover

\begin{tabular}{|c|c|c|c|} \hline & & 52 Weeks Ended & \\ \hline & \begin{tabular}{c} August 28, \\ 2022 \end{tabular} & \begin{tabular}{c} August 29, \\ 2021 \end{tabular} & \begin{tabular}{c} August 30, \\ 2020 \end{tabular} \\ \hline REVENUE & & & \\ \hline Net sales & 222,730 & 192,052 & 163,220 \\ \hline Membership fees & 4,224 & 3,877 & 3,541 \\ \hline Total revenue & 226,954 & 195,929 & 166,761 \\ \hline OPERATING EXPENSES & & & \\ \hline Merchandise costs & 199,382 & 170,684 & 144,939 \\ \hline Selling, general and administrative & 19,779 & 18,537 & 16,387 \\ \hline Operating income & 7,793 & 6,708 & 5,435 \\ \hline OTHER INCOME (EXPENSE) & & & \\ \hline Interest expense & (158) & (171) & (160) \\ \hline Interest income and other, net & 205 & 143 & 92 \\ \hline INCOME BEFORE INCOME TAXES & 7,840 & 6,680 & 5,367 \\ \hline Provision for income taxes & 1,925 & 1,601 & 1,308 \\ \hline \begin{tabular}{l} Net income including noncontrolling interests \\ Net income attributable to noncontrolling \end{tabular} & 5,915 & 5,079 & 4,059 \\ \hline \end{tabular} \begin{tabular}{|c|c|c|} \hline \multicolumn{3}{|l|}{ CURRENT LIABILITIES } \\ \hline Accounts payable & 17,848 & 16,278 \\ \hline Accrued salaries and benefits & 4,381 & 4,090 \\ \hline Accrued member rewards & 1,911 & 1,671 \\ \hline Deferred membership fees & 2,174 & 2,042 \\ \hline Current portion of long-term debt & 73 & 799 \\ \hline Other current liabilities & 5,611 & 4,561 \\ \hline Total current liabilities & 31,998 & 29,441 \\ \hline \multicolumn{3}{|l|}{ OTHER LIABILITIES } \\ \hline Long-term debt, excluding current portion & 6,484 & 6,692 \\ \hline Long-term operating lease liabilities .. & 2,482 & 2,642 \\ \hline Other long-term liabilities & 2,555 & 2,415 \\ \hline TOTAL LIABILITIES & 43,519 & 41,190 \\ \hline \multicolumn{3}{|l|}{ COMMITMENTS AND CONTINGENCIES } \\ \hline \multicolumn{3}{|l|}{ EQUITY } \\ \hline \begin{tabular}{l} Preferred stock $0.005 par value; 100,000,000 shares authorized; \\ no shares issued and outstanding \end{tabular} & - & \\ \hline \begin{tabular}{l} Common stock $0.005 par value; 900,000,000 shares authorized; \\ 442,664,000 and 441,825,000 shares issued and outstanding \end{tabular} & 2 & 4 \\ \hline Additional paid-in capital .... & 6,884 & 7,031 \\ \hline Accumulated other comprehensive loss & (1,829) & (1,137) \\ \hline Retained earnings & 15,585 & 11,666 \\ \hline Total Costco stockholders' equity & 20,642 & 17,564 \\ \hline Noncontrolling interests & 5 & 514 \\ \hline TOTAL EQUITY & 20,647 & 18,078 \\ \hline TOTAL LIABILITIES AND EQUITY & 64,166 & 59,268 \\ \hline \end{tabular} The valuation allowance related to receivables was not material to our consolidated financial statements at the end of 2022, 2021, and 2020. Merchandise Inventories Merchandise inventories consist of the following