You don't need to make too many kinds of porridge, just make three or four kinds of porridge. For example: preserved egg lean meat porridge, black rice porridge, red bean porridge (these are more popular flavors). As far as cakes are concerned, meat and eggs sell best. You can also get some sauce-flavored, spiced and so on. If it tastes good, it depends on how you position the price and quantity.

Three people should be enough.

According to your 15000 people, an average of 187.5 people can theoretically spend 1 time in your window every day. According to the amount of one bowl of porridge and two cakes per person (my breakfast amount). A bowl of porridge is calculated according to the average 2 yuan, and a cake is calculated according to the average 1 yuan. 750 yuan's daily income, 1 year is 273,750 yuan, and 1 year is more than 270,000 yuan. How can you earn after deducting those expenses?

Of course, this is the theoretical average, depending on the boss's operation.