Ok. So I have been researching and compiling info for the past 15 hrs about this. Hope someone can have some helpful input.

What I am trying to do is create a program to use for my construction business to help with estimates of a job to make things easier, where I input certain numbers in certain fields and they generate me an answer using math formulas.

For example, Concrete yardage formula= (L*W*D)/27, with D being default 0.33 and L W D being in feet. It is the correct formula but how do I compile it into a program to do it for me without using a calculator? Along with formulas for estimating the cost of material, labor charge, etc. But I'll worry about that later.

I have been watching video after video after video, and reading all kinds of articles and have yet to find something of this perspective to help me.

Most of what I find are in Visual C++ which I have, but they are all totally different than what I've been working with. Below is a screenshot of what I've got so far, just need help with the "guts" of it I guess.

http://i41.tinypic.com/vew4d2.jpg

Again any help would be greatly appreciated!! Thanks!!