Generally, participants in my courses and workshops are from all over the world, but they tend to live in The Netherlands. My courses and workshops are however open to anyone. Regarding the fees, I like to make a distinction between countries with a high living standard (like most of the EU and the US) and countries with a lower living standard.
Course price*: personal fee + 200 euro
Workshops*: 20 euro per workshop
Course price*: personal fee
* Note: these are all set prices. In specific circumstances you can get extra reduction (e.g. people without any income, single mothers with low income, …)