Your initial discussion thread is due on Day 3 (Thursday) and you have until Day 7 (Monday) to respond to your classmates. Your grade will reflect both the quality of your initial post and the depth of your responses. Reference the Discussion Forum Grading Rubricfor guidance on how your discussion will be evaluated. Profit Margin Year Ending December 2012 Year Ending December 2011 Year Ending December 2010Revenues 40,000 35,000 33,000Operating Expenses Salaries 15,000 10,000 9,000Maintenance and Repairs 6,000 9,000 10,000Rental Expense 2,500 2,500 2,500Depreciation 2,000 2,000 2,000Fuel 4,000 3,500 2,500Total Operating Expenses 29,500 27,000 26,000Operating Income 10,500 8,000 7,000Sales and Administrative Expenses 6,000 4,000 3,000Interest Expense 2,500 2,000 1,000Net Income 2,000 2,000 3,000Above is a comparative income statement for Cecil, Inc. for the years 2010, 2011, and 2012. Calculate the net-profit margin for each of these years. Comment on the profit margin trend.