If it's 300 thousand, the bank will make a steady profit of two or three thousand. If you are in stocks, you may earn tens of thousands or lose tens of thousands. If you are in futures, you may earn 200,000 to 300,000, you may earn 300,000 to 400,000, and you may lose 300,000. How to manage money, rational choice. If you don't know how to do it, try to choose a stable one.