I have production chains, meaning I produce everthing but water and power on my own. I am going to start buying seeds Q0 later though.
I have gone through your calc and, first of all, you add 10% profit to all your products which you incorperate in your calc. I don't. I add my profit afterwards and it is higher than 10%. After that, commission and percentage of quality. It can be argued if this is right or wrong, but to me, production cost is the raw cost - without added profit whatsoever. We all have different ideas of what's good profit.
Secondly, your production costs taken from your facilities are different (lower) than mine. Why I don't know.
I'm not here to argue right or wrong, just that calculations aren't as simple as they seem.
