recalculation of formula

Hi ragic member,
I am here to ask about Ragic recalculation.
Actually, I don’t know how does this recalculation work?
when it works? why it works? what triggers it to work?

I have a question:
I have some fields which are given with a formula.

Is it possible for me to stop some of the field from being recalculated??
this is because, when the recalculation occurs, all the previous data entry are gone (data recalculated according to the formula.)

So, is there any guide for me to refer?

thank you

If you would only like to trigger formula calculation once when the entry is created and do not want it to be recalculated anymore, please use default value formula instead: