I found the following article and I have read it.

In fact, I bought TSMC's stock before and didn't read its financial report, but as mentioned in the previous article,

Let's study and watch TSMC's financial report numbers.

The goal is to invest in TSMC stocks. Only when you can understand TSMC can you dare to hold for a long time and invest in TSMC for a long time.

https://www.managertoday.com.tw/articles/view/55137

How to calculate gross profit margin, net profit margin, and operating profit margin? Only by understanding these formulas can you know whether the company has made any money!

2021/07/22

Manager editorial department

"Operating Profit = Revenue - Operating Cost - Operating Expense"

"Operating profit ratio = operating profit / revenue"

"Net Profit After Tax = Gross Profit - Operating Expenses - Tax"

Net interest rate calculation formula:

"Net interest rate = net profit after tax / revenue"

Looking at the last item, 2020 will grow compared to 2019. In 2020, TSMC does not know why the after-tax net profit margin has grown a lot.

Is the high-end process more profitable? The high-end process has begun to ship in large quantities? Or is the performance good?

I have already googled some related information, and I will continue to learn about TSMC in the future.

The revenue for the full year of 2020 was RMB 1,339.255 trillion, an increase of 25.2% over 2019.