The real answer here is that there are 2 pricing structures on Agon. A tier structure for older members and a % based structure for newer members. The only way to find out which one you are in is to go through the process of creating an ad 'mock listing' and it will reveal which one you are in. Admin told me they will eventually convert everyone to the % based structure but until then everyone is confused.....As soon as they see my post they will remove probably the entire thread as to "not confuse anyone"..... Instead of explaining what's going on!