Well, in that sense, we must also consider the bhav chalit chart also. A bhav chalit chart is used mainly when we have to look for the result of a mahadasa, antardasa or pratyantar dasa. Most of the time, the planets stay in the same house or move backwards (one house back) in the bhav chalit chart. When you have a look at your chart, note that it is the house with respect to the what the planet moving will give results and not with respect to sign it moves to.
This can be understood as following:
Consider that you have Mercury in Virgo in 3rd house and Mercury dasa is about to start for a native. In his/her bhav chalit chart, Mercury moves to 2nd house, hence the the native will gain money via his/her younger siblings and the gain will be really good since the Mercury is in own house. The result will be gain of money (2nd house) and not of authority (signified by Leo).
Hence, since we have 5 houses 1, 2, 5, 9, 11 to consider we can have following considerations:
1. As described above, if in the bhav chalit chart the 5th house lord of D1, moves to fourth house, the native will gain money through his mother and speculative ventures, sports etc.
2. Also, if the lord of 2nd house moves to 1st house, the native will gain money through self improvement and efforts.
3. If the lord of 9th of D1 moves to 8th in Bhav chalit, the native will gain wealth through lotteries, spiritual activities and in-laws during the period of 9th lord.
4. Similarly when the lord of 12th moves to 11th in bhav chalit, the native will gain through foreigners, foreign travels, spiritual upliftment of the soul etc.