Firstly the URL I posted and the associated pages are for testing purposes so please feel free to add entries so I can test your solution.
The URL with the start of what i am trying to work out is:
When you click 'Register" a page with a form will launch. At the bottom of the form the prices for member and non member tickets is displayed next to 2 text fields where the user will add the number of tickets required.
Below this is a total text field.
How do I auto total the No of member ticks x price + No of non-member ticks x price?