Gross margin is also referred to as the gross profit margin. To calculate the profit margin you will need to deduct the cost of goods sold from your sales, which is your profit, and
http://answers.ask.com/Business/Other/how_to_calcu...

There are several measurements commonly used, including "cashoncash return" and "cap rate" (capitalization rate). I recently wrote a 4 part blog on this ("
http://www.quora.com/RealEstateInvesting/Whatis...

1. Determine the original cost the investor paid for the investment. For example, Investor A bought 100 shares of stock for $20 a share, so the original cost is $2,000. 2. Determine
http://www.ehow.com/how_6393335_calculatereturni...
