What is changed with the culture setting?

Culture settings include language, date formats, number formats, and currency. For example, UK and US handle date, number, and currency differently than the each other, even though we both speak English. Changing the culture setting for a site will change the data, number, and currency, and language for notifications.  The culture setting does not change any text entered by the Pressero admin when the site was created. Like: 
  • Name of the products and Categories,
  • if you have renamed any menu item in navigation, like adding the sub-menu and changing the name to something else.
  • Description of the Products and Categories
  • The heading of the e-Doc Builder fields will not be changed.
That should be changed by the customers browser settings. And, there's the secondary option to force the language to match the culture, which is otherwise driven from the browser in the site settings area of admin.  
The Site Culture does not affect the currency conversion, it will only display the amount with different currency symbol based on the site culture chosen.