Why is the salary in the factory higher than that in the hotel?

The reason why the salary in the factory is higher than that in the hotel is:

First, the factory works overtime for a long time. When the basic salary is fixed, the more overtime, the higher the salary.

Second, hotels generally belong to the service industry, that is, the tertiary industry. Wages are generally low and overtime is less, which leads to hotel wages generally not as high as those in factories.