I'm looking for the part in Chapter 3 where Baba solves Damu Anna's financial problems related to his trade. Can you explain what happened?

The provided text from Chapter 3 does not describe an episode involving Damu Anna or financial problems related to a trade. The financial concern mentioned in this chapter relates to Annasaheb, who had just retired on a pension in 1916. A friend expressed worry that the pension would not be enough for his growing household. In response, Sai Baba offered a spiritual solution rather than a material one. According to Chapter 3, Baba advised Annasaheb to perform His service with devotion, promising that "His plates are always full; they will never be empty as long as he lives," and that all his calamities would be removed.