The rate in orange is the median rate of your competitors; the median is the middle value of a range of values and is different from the average. If you for example have the following range of rates "90, 74, 40", then 74 is the median value and 68 the average. The system uses the median instead of the average rate because the average may significantly be influenced by extremely low or high rates (which could create a false representation of the market demand).
You can hover over the median rate on the calendar to see per competitor what the rate is for that specific date. In the example below you see MLOS 2 behind the rate of Hotel C; this means that there is a restriction of 2 nights on this rate so guests will only get this rate when they book for at least 2 nights.