Find online the annual 10-K report for Costco Wholesale Corporation (COST) for fiscal year 2015 (filed in October 2015). a. Compute Costco's net profit margin, total asset turnover, and equity multiplier. b. Verify the DuPont Identity for Costco's ROE. c. If Costco's managers wanted to increase its ROE by 1.5 percentage point, how much higher would their asset turnover need to be? a. Compute Costco's net profit margin, total asset turnover, and equity multiplier. Local Co. has sales of $10.8 million and cost of sales of $6.5 million. Its selling, general and administrative expenses are $500,000 and its research and development is $1.4 million. It has annual depreciation charges of $1.4 million and a tax rate of 35%. a. What is Local's gross margin? b. What is Local's operating margin? c. What is Local's net profit margin