Running a gym or doing any other business is risky. Whether to make money or not is determined by many factors.
In fact, the gym is a service industry. In other words, at the beginning of business, if the infrastructure cost including buildings is to be calculated, it will be shared over several years. The specific year is related to the original business plan and the strength of the boss. Then, pastoral algorithms like ours generally don't take this part into account. So basically what can be included is the venue rent+labor cost+equipment maintenance depreciation+publicity cost+financing cost (that is, loan interest).
The lifeblood of a gym is passenger flow. Assuming higher profit, the customer's unit price profit reaches 500%. There is no point in not having enough passengers, because too few passengers are not enough to support the operating costs. Therefore, the first thing to do is to attract tourists. At present, there are only two ways to buy customers, one is low-cost attraction (accurately called cost-effective attraction), and the other is brand/word-of-mouth effect (for example, operating online celebrity stores, and I classify online celebrity products into this category). In contrast, the first one is undoubtedly simpler and more direct, while the latter is difficult to operate and has harsh conditions for success.
In short, the gym is not a violent industry. If you want to make money, you need to operate and manage it in a down-to-earth manner.