Value is entirely subjective. What may seem fair and equitable to you may not be so to someone else. You may pay many millions for a painting or other work of art. Other people would not be willing...
For stocks and bonds it is simply a matter of looking up the prices for the date. For other items such as property, it can be evaluated currently and the price adjusted based on the local market.
There are multiple ways to do this. The best way would be to pay for an appraisal. That could cost you several hundred dollars though. You could check the county appraisal district, but these prices...
Market Value of a company = No. of outstanding shares * Market price per share Assuming there are 100,000,000 share of XYZ limited and its price per share is $25, the market value of the XYZ limited...