How are evaluation and value of company found?

It is easier to know value of company and value of share, how?

* What is the value of company share? How much money can i sell my company?
* I will quit from share of company, how much is my share?
* What should be done before disappearing?
* Which rights come after share transfer?
* Which responsibility comes for aged debt and debts?
* What are the advantages coming with share?
* Advantages of evaluation before buying a company?
* Circumstances rising and decreasing the value of share and company in companies?
* Benefits of check-up before selling or buying a company?
* What should be done before going into public?
* What should be done on going into foreign capital company?
* All these are met by expertise staff of our company.