The prices vary according to where you buy them. I would ask an expert at Home Depot or Lowe's. You can give them a call or look online for various prices. It will save you time and gas by doing some research first. I am sure the prices fluctuate also.
This is very much depend on place for example city,then state also then country.Everywhere price is different.Then it depends on Brand of Ceiling fans company.After Brand it is model which affects the price