Using the following financial data for Boeing Company for the years 2018, 2019, and 2020, perform the financial analysis:

	2018	2019	2020
Revenue	$101,127	$84,154	$58,158
Cost of Goods Sold	$78,127	$67,200	$57,100
Gross Profit	$23,000	$16,954	$1,058
Operating Expenses	$16,254	$14,432	$13,500
Operating Income	$6,746	$2,522	-$12,442
Net Income	$5,051	-$636	-$11,873

	2018	2019	2020
Total Assets	$117,359	$133,625	$132,198
Total Liabilities	$81,258	$101,127	$102,898
Shareholders' Equity	$36,101	$32,498	$29,300

Requirements:

1. Calculate the gross profit margin for each year.
2. Determine the operating profit margin for each year.
3. Calculate the net profit margin for each year.
4. Compute the return on assets (ROA) for each year.
5. Compute the return on equity (ROE) for each year.
6. Discuss the financial performance trend of Boeing Company.