RM800 per month excluding commision is consider very good. If you can really make some good sales, then u can easily get more than RM1000. What can u expect more?

Job like PC Fair will be well paid. But it will be extremely tiring. Also you don't get a permanent job like that.

You are already asking "how to work" before you even start working. This is already a bad attitude. Just start work first, talk later