Your birth chart indicates overall prosperity both for you and your family. While Mars Mahadasha may bring some challenges, especially with authority figures, it doesn’t necessarily mean financial downfall.
In your case, Mars is debilitated, which can cause conflicts with government officials, workplace seniors, or business superiors. However, this doesn't mean a lack of success—just that you might have to work harder to earn recognition.
To give you an example, my sister is a Wing Commander in the IAF, and she is currently going through her Mars Mahadasha with Mars in the 9th house (Cancer). She has faced minor conflicts with seniors, but nothing significant in terms of losses or failures.
If you're concerned about wealth accumulation and business, you should focus on strengthening Mars through remedies and making strategic financial decisions during this period.
Let me know if you need specific remedies or insights into Rahu Mahadasha as well.