My answer (the best answer)
Look at the balance sheet, look at the profit, etc. First, go to this company to look at its statements. Look at the profit, depending on its sales revenue.
For example, what is the proportion of profit? From the gross profit, you can know how a company's buyers are.
If the ratio of gross profit to sales is large, it means that its purchases are cheap. From dividends, we can see that the company pays attention to investment.
If it is too low, it can explain the company's management from the side, and the efficiency is not high. If it is too high, it shows that the company is not good at investing.
In other aspects, you can learn about its background, evaluate its ability and whether it is suitable for this company from the perspective of the company's managers. Or from the past performance, it depends on how the company's loans are. If it is too much, there will be risks, or lack of confidence. Divide the net profit by sales to know the management of the company's consumption in other aspects, such as water and electricity, office supplies, etc. If the result is high, it means that the company is economical and orderly, if it is low, it means that the company's efficiency is not high. Finally, compare the company's performance every year.
If it is obviously rising, it means that the company's direction is correct.