Ie 11% average annual rent with a 50/50 split with agent/agency they work for?
Agents typically charge a half month's commission for a 1 year lease and a full month's commission for a 2 year lease.
The commission split within the agency depends on the agent's agreement with the agency. It usually starts at a 70/30 split with 70% going to the agent and 30% going to the agency.
Hope this answers your question.