1) We have to give priority for Paksha Bal for Moon. For other planet we give priority for Sthanbal.
2) Shhathbal of any planet is more than average requirement then it is considered strong even planet has less Pakshbal or Sthanbal.
3)Sun needs minimum 6.5 Rupa, Moon – 6 Rupa, Mars 5 Rupa, Mercury 7 Rupabal, Jupiter 6.5 Rupa, Venus 5.5 Rupa and Saturn needs 5 Rupabal.
4)If any planet has less than above said Rupabal then it is considered weak in strength.
5)For knowing Bhav Bal we add
Lagnesh shadbal + Bhav Digbal + Bhav Drigbal