In a speech with the general purpose "to inform," a speaker's goal is to

The general purpose of speech is to inform. The universally useful of any discourse will be either to Inform; Motivate/Persuade, or Entertain your group of onlookers. When you know the broadly useful of your discourse you can build up your Specific Purpose Statement. Your Specific Purpose Statement is utilized to build up your discourse.

Currently, as of february 2016, an american traveling in france would be by the exchange rate. the weakness of the euro and the strength of the us dollar means that items in france cost less to an american than they otherwise would. of course, if this trend reverses and the us dollar weakens and the euro strengthens, such as was happening in early 2008, an american traveling in france would have an adverse experience because items would cost relatively more.