Examine the income statements of Netflix Inc. for the years ended December 31, 2022, and 2021.

Netflix Inc.	2022	2021
Sales	$31,615	$29,698
Cost of Goods Sold	$16,048	$14,924
Gross Profit	$15,567	$14,774
Operating Expenses	$9,487	$8,562
Net Income	$5,116	$5,116

Requirements:

1. Calculate the gross profit margin for each year.
2. Calculate the operating profit margin for each year.
3. Compute the net profit margin for each year.
4. Discuss the stability of Netflix Inc.'s profitability over the two years.