Local Co. has sales of $10.5 million and cost of sales of $5.7 million. Its selling, general and administrative expenses are $490,000 and its research and development is $1.1 million. It has annual depreciation charges of $1.3 million and a tax rate of 25%. a. What is Local's gross margin? b. What is Local's operating margin? c. What is Local's net profit margin? a. What is Local's gross margin? Local's gross margin is %. (Round to one decimal place.)