[classicman]

Congrats!
What are you selling?

Typically you get a base salary + 15% on either what you sell or cash paid.
You are better off if it is cash paid - then you needn't deal with chargebacks (when you've already gotten your commission and then they take it away.

Check on how you are getting the commissions paid - what timeframe.
Are taxes being taken out or are you getting a 1099? If 1099 you gotta pay attention to taxes and more. (some employers won't take out for everything and consider you a contract employee - therefore responsible for more)

The other option is that you are getting a regular check - The draw, but it is based upon you selling and then your commission is offset by that amount. This is very typical.