3. Using the income statements from the Green Bay Packers shown in the table below, answer the following questions:

	2009	2010	2012	2014	2015	2016	2017
National revenues	$147.1 million	$157.5 million	$171.6 million	$187.7 million	$209.1 million	$222.6 million	$235.0 million
Local revenues	$100.8 million	$100.4 million	$130.4 million	$137.1 million	$149.3 million	$186.2 million	$197.4 million
Total revenues	$247.9 million	$257.9 million	$302.0 million	$324.8 million	$377.2 million	$408.7 million	$441.4 million
Player costs	$138.7 million	$160.8million	$158.8 million	$171.0 million	$159.0 million	$165.0 million	$192.5 million
Other costs	$89.1 million	$87.3 million	$100.4 million	$128.5 million	$177.3 million	$168.7 million	$183.6 million
Total operating expenditures	$227.8 million	$248.1 million	$259.2 million	$299.5 million	$336.3 million	$333.7 million	$376.1 million
Net operating income	$20.1 million	$9.8 million	$42.7 million	$25.3 million	$39.4 million	$75.0 million	$65.4 million

a. Calculate the Net Profit Margin for the Green Bay Packers for each year. (6 points)

b. What year had the highest net profit margin? What year had the lowest? (2 points)

c. Compare the revenues and costs for the years with the highest and lowest profit margin. What differences between revenues and costs for each year explain the difference in Net Profit Margins? (2 points)

d. National revenues are higher than local revenues for the Green Bay Packers. What source of revenue is likely to be the biggest source of national revenue for the Green Bay Packers and other NFL teams? (1 point)