can someone help me make a guide?

I have been looking for a guide to tell me how many cavs I should use to kill cats, for instance if I knew how many cavs it took to kill 100 cats I could do the math from there easy. I have searched for a while and maybe its already out there and im searching in the wrong areas but if not I think it would be great for a guide on how many troops it would take of each to kill 100 of each i.e. how many archers to kill 100 cavs , how many Inf to kill 100 cats and so on for each one against the other.

I think it would be nice as well to see how many it would take just to win the fight and then how many to have little to no losses. I am no good at math and just overkill on most things but I think it would be nice to see this guide and if anyone could help me thanks.

There's a free app around called "haypi calculator"
It does exactly what your describing.

There is Another option, in case this app is not available to android users.

I understand you do not excel at mathematics, but I am willing to bet that your phone has a calculator, and fortunately for you, as long as you type well, your calculator will make no errors.

Use this guide to determine your troops' battle effectiveness. You can assume that if you are fighting npc troops, they will have base attributes and no tech or equipment. Calculate the enemies stats as well. Add to your defense scores the units life rating (found in the barracks) and subtract the defending units total def+life from the attacking units attack modifications. This will give you a pretty accurate representation of how many of each will die. This method may also be used for human opponents as well, but bear in mind, you'll need to know their statistics in order to be most accurate. However, by scouting and some thought of their level, you can assume somewhat how they've arranged their points for your calculations.

Yet another way, and far easier but a heckuva lot more costly, is to simply send your troops at a fort and see how many of each unit are killed each turn by your troops. Simple math can determine the average amount of troops killed per unit.

Feel free to pm me for help with the link, if you don't understand.