Advanced Micro Devices reported the following items for the current year: Sales = $5,500,000; Cost of Goods Sold = $1,000,000; Depreciation Expense = $440,000; Administrative Expenses = $1,500,000; Interest Expense = $50,000; Marketing Expenses = $1,200,000; and Taxes = $525,000. Advanced Micro Devices' net profit margin is equal to ?