Is it 1.5% or 1.5‰? 1.5% is too dark. Which securities company should I sue? The transaction tax of 1% is outrageous. There is no such thing. Let's call it 1.5‰, 1‰.

The purchase cost is 25 *1000 * (1+1.5 ‰).

After some tossing, the closing price on Thursday was =25+4+4.5- 1.5-2.5=29.5.

This "all sold out by Friday" is really weird. Then let's assume that gub was sold at Friday's closing price.

Cash from selling stocks on Friday = (29.5-6) *1000 * (1-1.5 ‰-1‰)

Profit and loss of the whole transaction = cash harvest on Friday-buying cost (lazy, do it yourself)

On the second floor, I also heard that copying foreign exchange is more enjoyable, but according to my visual observation, ignoring the scary commission and handling fee, shareholder A also lost $ 1.5 per share. How is the income of 300 calculated? I want to express my doubts in a friendly way.