How does a Corporation determine how many shares to sell? Also, how do they determine what percent of the Corporation each share should be worth?
http://en.wikipedia.org/wiki/Initial_public_offering]http://www.activefilings.com/en/information/faq_shares.htm
Depends on what kind of offering you want to do. Being a public company is very expensive these days because you have to make a lot of disclosures. If you want to go public, you probably want to issue 3-400,000 shares at the minimum and get a float of around $10 million to make it worthwhile. If it's a private offering, you can do much less. Underwriters usually figure out what the market will bear and price shares accordingly.
