you should let one of your most trusted immediate family members take charge of the financial affairs and income and expenditure. Moreover, you should be familiar with how much you feed every day, how much you can cook with, and set up an account book of daily expenses and income. If you are often away from the store and have no relatives to help you, you'd better choose to contract them, because they are students and have no capital. You can pay this part of the capital for them to do, and calculate how much you usually invest every day, how much you spend excluding materials, how much the store rent, utilities, the remaining profits and the distribution of helpers. I wish you to be a wise boss who makes more money every day.