Is it possible to quantify the spiritual-mystical value of money?

Is it possible to quantify the spiritual-mystical value of money?
An incident that happened: A man made an agreement with his friend that he would teach him a magic trick, so that he could perform a sign on people on the street. In exchange for the magic, the people would put money into the coffer, and the agreement was that the performer of the magic would receive 30 percent of the money in the coffer, while the one who taught the magic would receive 70%. At the end of the day, the two men emptied the coffer, and discovered there was also a coin belonging to an important rabbi, and for both of them the coin had a high spiritual-mystical value. Each of them wanted the coin with all their might.
How can the division be carried out in accordance with the aforementioned agreement?