Personally, I think that if you take care of the store he invested in, the money he earned should be divided into 50-50 after deducting your due salary. I have a friend who has done this before. Of course, it is better for the two political parties to sign an agreement to avoid any differences in the future. If your friend wants to withdraw his shares after running for a long time, you can return the money he invested at the beginning and the store will be yours.

One more thing, doing business is not 100% profitable, and it is risky. You need to discuss what to do if the investment money is lost. I think if this happens, both parties should bear it.