Blackbababa. What you seem to be asking is what the cost of the foundation and floor slab is. If you are unable to work out the exact coat of materials you need to employ a person to do so.
Nobody here could give you a price on this because there are to many variables relating to each individual house. Your Architect/QS could give you break down.
It is both dangerous and foolish to be messing around with such important matters.
I am coming to the end of a build. Foundations slab etc cost me 33500euro because there was extra work needed. Your job could be a lot cheaper or more expensive depending.
Good advise and expertise is not cheap but cheaper in the long run. Good luck with your project.