You can use different
participant groups for setting different prices for participants from different countries (see image 1 and 2 as an example).
Please go to
Overview => Settings => Manage Participant GroupsFirst, turn on the
Expert Settings toggle in the lower navigation bar.
The toggle is labeled "Expert Settings Disabled" until activated.
This gives you additional options for editing the participant groups.
Then activate the option
"Enable Filter by Country". Now you can filter the group by country and make it available to users / participants from selected countries only (see image 3).
You can also have a look at our example for a basic setup with time discounts and different participant groups:
https://www.conftool.net/en/configuration-documentation/participant-registration-examples.html#c194