Before the berlin conference, how much of africa was independent (under local control)?

Before the Berlin Conference, there were 2 main territories controlled by European powers, those being:

The rest of the territories (about 80% of it) were controlled by Africa´s native tribes.

Some of the biggest independent territories were Soudan, Algeria and Egypt.

a change of venue is the legal term for moving a trial to a new location. a change of venue request because venue is improper means that the removing defendant believes that the case may not be in that venue because it is improper under procedural rules.