It all depends. In a recent assignment for a radio station we found that the top sales performers earned up to a million plus rand pa, average performers R350-400,000, and low performers around R100,000. All of these people were selling exactly the same product to the same type of clients.So it depends on the calibre of the salesperson, the strength of your brand/product, your pricing and many other factors. However, all things being equal, talented salespeople will sell plenty and weak salespeople will struggle.