I need to use a custom field dropdown or radio buttons to allow users to select between being inside Australia or outside Australia.
If a user chooses "inside Australia" then I want to add 10% to the price of each item they are buying
I've set up a custom field, called dms_GST
I've set it as a dropdown
I've set it as a required field
I've given it two values - Inside Australia, and Outside Australia
It is set as a fee field
There are two Fee Values are set as 1.1, and 0
The Fee Formula is set as [FIELD_VALUE]*[PRICE]
Unfortunately, this isn't making a difference to the price when a user confirms the order and checks out.
The only way I've been able to get this to work at all is to not use a fee formula, and have one value in the Fee Values field. This won't work for me though, as not all products have the same price.