It depends on the size of the convenience store you want to open. For example, it is a 100 square meter storefront. About 10000 shelves, 8000 decoration, 5000 three air conditioners, 3000 two refrigerators and 50 million cash register. It can be equipped with 400 million commodities at the beginning. Later, I will add it slowly after I open it. The cost you need for a month is rent 1500, two people *2000=4000, water and electricity 2000, and the loss is 500, which is 10000/ month, which is 25% of your gross profit, so if you do at least 40000 a month, you won't lose money, and do it every day on average/kloc-.