I have a question about tracking assets. If they ever sell or change assets, how do we track what monetary amounts they should have from it? Like, if something gets sold, how can we track that we have this lump of money like 12 months down the line when we want to use it for something else?

Because right now money seems to be arbitrary, but this page has made objects and property tracked. So if we move property to an arbitrary amount instead of directly trading it in for another property, it seems like it's thrown to the aether and questionable if it can be retrieved.