@LizzysVintageGems: Is there a setting on the page that allows the user to change the currency to one of their choice?
Likely you accidentally clicked on currency displayed and changed it. It shouldn't affect anything, buyers see prices in the currency they are shopping in. Simply change it back on your $$ view. The button is on the bottom of the page.
By the way, this is the 2nd thread you started on this, and there are answers in your first thread.