1. On September 3, Mr. Zhang bought an oversold stock at a price of 4.18 yuan. The next day, the stock rose by 0.42 yuan, an increase of several percent. ? 4.18+0.42=4.60 4.60/4.18-1=10.04784 An increase of 10.05%
Is this percentage the same as the increase or decrease limit? Different.
Why? It has exceeded the 10% limit of increase or decrease by 0.01.
2. At 3:00 pm on September 15, Mr. Zhang's stock has increased by 15%. If he buys 20,000 shares, how much profit has he made now?
At this time, the stock price has reached: 4.18*1.15%=4.807, and he has made a profit (4.807-4.18)*20000=12540 yuan.
3. September 17, 1:00 pm Around 1,000 yuan, Mr. Zhang promptly sold his stock and made a pre-tax profit of 1,500 yuan. What was the price of the stock at this time?
1500*20000=0.075 At this time, the price of this stock is 4.18+0.075=4.255
After deducting the 1.1% transaction profit and tax, how much profit did Mr. Zhang actually make? Yuan?
1500(1-0.011)=1500-16.50=1483.50
4. What else do you know about stocks?
There is still a lot to know about stocks.
If your father also buys stocks, how will you use the knowledge you have learned to help them manage their finances?
Haha, I am preparing to be a grandpa.
I think these questions are a bit neurotic, but they are homework in "Happy Winter Vacation", 555~~Help me~ ~~
I helped you! How many stars can I add?