As compare a merchandise business to a service business?

If you want the differences The merchandise business your mainly on product. How much does its cost you to make something and how much can you sell it for? Sometimes some service is involved. Usually in service industries its less product being used. Usually something somebody does. Like getting your hair cut you do not buy any product. Your generally paying for a persons/business time and ability to do something you could not of done or wanted someone qualified to do for you. Object of service is to help people make things easier.