If you eat it, you will save more money by eating frozen food, such as hamburgers and pizzas, which weigh less than 2 kg, and rice. If you buy food and cook by yourself, it will definitely be expensive. After all, fresh vegetables will definitely be expensive. Not counting eating out, I think a month 100 is almost enough after finding clever ways to save money. However, if you really cook by yourself, the initial investment will definitely be large, and the domestic seasonings are still not cheap. On my first day here, I bought almost 70 Jin of kitchen seasoning. Of course, I have a high demand for spices, even buying everything from oil consumption to aniseed.
You'll know when you really survive, because it's really hard to say how much you eat, mainly depending on your taste. But there are many ways to save money. You can go to the supermarket with the first person, and you will find it slowly.