AMAZON Calculate the gross profit ratio, operating margin ratio, and net income margin ratio for the latest two years, and obtain the industry average ratios (if available). You may use the IBISWorld database, available through the UAGC Library, or another outside resource of your choice. Analyze these ratios and discuss what each of these ratios tells you about the companys profitability, and how it compares to the industry averages. Note any trends in these ratios from year-to-year, and discuss your assessment of the company based on these changes. If you were an investor, explain why you would or would not buy stock in the company.