Here is a link to an article that discusses the stock of Apple using ratio analysis.

Ratio Analysis of Apple stock (Motley Fool website - April 2015) - https://www.fool.com/investing/general/2015/04/24/apple-inc-stock-ratio-analysis.aspx?source=isesitlnk0000001&mrr=0.50

The analysis in this article is a couple of years old. Here is a link to the latest financial information: Apple - Financial Ratios - https://www.fool.com/quote/nasdaq/apple/aapl/financial-ratios

Based on the latest information, to what extent do you think the original analysis is still useful and valid? Are there any major changes in Apple's situation as compared to a few years ago?