Stock Market Question?

[David]

Go to Yahoo Finance
http://finance.yahoo.com/

Type in the name of the company or their ticker symbol; I'll use Facebook
http://finance.yahoo.com/q?s=fb&ql=1

Facebook, Inc. (FB)
57.66 Down 0.57(0.98%) 1:29PM EST - Nasdaq Real Time Price

The price for one share is quoted as $57.66, down 0.57 cents for the day, or down about 1%.

For the number of shares outstanding, click on Key Statistics on the left sidebar
http://finance.yahoo.com/q/ks?s=FB+Key+Statistics
Shares Outstanding5:2.45B

If you don't know what that means, define your terms at Investopedia or Wiki.
http://www.investopedia.com/terms/o/outs...shares.asp

It is not clear what you mean by the "cost of the company." Do you mean buy-out cost. Or are you interested in the worth of the company?

http://www.dummies.com/how-to/content/ho...worth.html
http://www.investopedia.com/ask/answers/133.asp