Review the following comparative financial statements for Tesla Inc. for the years ended December 31, 2022, 2021, and 2020.

Tesla Inc.	2022	2021	2020
Sales	$81,462	$53,823	$31,536
Cost of Goods Sold	$54,123	$36,271	$20,524
Gross Profit	$27,339	$17,552	$11,012
Operating Expenses	$16,834	$11,497	$7,852
Net Income	$11,505	$6,055	$3,160

Requirements:

1. Calculate the gross profit margin for each year.
2. Determine the operating profit margin for each year.
3. Compute the net profit margin for each year.
4. Analyze the trends observed in the profitability of Tesla Inc. over the three-year period.