What do you mean by single room difference? What's the difference between single rooms?

Single room: a room for up to one person, with a set of toiletries and a breakfast.

Double standard room: a room for up to two people, with two sets of toiletries and two breakfasts. Double standard room generally refers to a room with two single beds.

Single room price difference: it often appears in the price description of tour groups. Generally, tour groups are quoted on an individual basis (two people live in a double standard room, that is, room rate /2). Then the question is, if the tour group happens to be a person, or the guest wants to live in a room alone, then he will have to pay more for the other half of the room, which is the origin of the single room price difference.

For example, if the double standard room in a hotel is 200 yuan/night, and the quotation in the tour group is 200/2 people, then under normal circumstances, the travel agency will charge the accommodation fee of 100 yuan per night.