Hi gradinka,
thanks for your question.
Matter of fact this caluculator is the result of my research I did the last weeks. I was kind a sad about not getting something like this for free to download. I didnt want to waste my time so i thought the community might want to participate using it.
The Value too high sure i could have stopped it earlier and attachting such big volumes to a server using a VM might not work by now but when you work for many customers implementing vCOPS in Enterprise Size Companys even the values above to high might be to low 
Anyway this is Version 1.0 and I keep working on it. Since I havent included the use of selfcreated supermetrics and third party adapters in the calculator jet but Im working on it right here right now 
Regards
Michael