Given below are the income statement data for Apple Inc. for the years ended September 30, 2022, and 2021.

Apple Inc.	2022	2021
Sales	$365,817	$294,135
Cost of Goods Sold	$183,060	$131,376
Gross Profit	$182,757	$162,759
Operating Expenses	$42,214	$36,986
Net Income	$94,680	$74,217

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 performance of Apple Inc. in terms of profitability from 2021 to 2022.