In this context, does the word "room" indicates a "hotel" as a whole? Or literally a "hotel room?"

Rebecca

Here it means a "hotel room!" So, instead of indicating the percentage of hotels, they gauged the percentage based on the total number of rooms across all the hotels. I'd say this is because some hotels have more rooms than others. Ex: The rooms in the southern branch are relatively nicer than the rooms in the northern branch. Ex: How many rooms are in this hotel? Ex: We have a total of 300 rooms across all our hotels.