As of my last knowledge update in October 2021, specific financial details about how much MAPPA made from producing "Dororo" are not publicly available. Production companies often do not disclose exact sales figures or profits for specific projects, as they can be influenced by various factors such as licensing, streaming rights, merchandise, and international sales.
"Dororo" is based on a manga by Osamu Tezuka and was produced by MAPPA, airing in 2019. The anime received positive reception, which may have contributed to its revenue through various channels like streaming services and merchandise. For the most accurate and updated financial information, it's best to refer to financial reports from MAPPA or analyses in industry-related publications.