Why does the score change?

MycoWiki answer

Why does the score change?

The context of an area changes over time. Recent rainfall, earlier dryness, season and the available data do not remain identical from one day to the next, so MycoRadar updates the comparison when its inputs change. A rise or fall does not mean that mushrooms have certainly appeared or disappeared. Open the factor details, see which inputs actually moved and compare the area with another instead of remembering the number alone. Check the update time and any forecast relevant to walking safety as well. The ground may then support, qualify or contradict this broad reading when you visit.