This is a price chart for the price of a hotel room in a specific hotel. It shows the price per night per room. The stair like pattern starts at Mondays most of the time, with decreasing prices towards the weekend.
We have this price information for bascially all hotels and apartments in our country, updated daily and it shows very interesting patterns depending on where the hotel is. Also: I found that there are hotels with a relatively stable pricing and then there are others which have a very dynamic pricing.
Question to you: would you find such a chart useful during your booking process and could it influence the arrival/departure time when you know where to look for the cheapest offers?