Well, most guys (me including) would tell you that it´d be a waste of time to dig through the numbers. Although it might shed some light here and there, the only thing you need to develop tactics is experience. After a while you´re going to ´feel´ when it is good to assault, to withdraw, to bring up reserves, leave the trenches or reinforce them, include your tanks in the assault or leave it to the infantry and then exploit with tanks, if you have enough superiority, if it´s good to risk an assault or there is one more turn of your firepower needed and all this stuff..
Maybe that´s why not many responded, you´re not the first one with this topic if I recall correctly