are you a student?

how long have you been in the field?

are your works equivalent to the international print magazines?

these questions should help you find your own suitable pricing..

If you've been doing this quite regularly part time, you could try charging RM50-RM100 per hour with a casual 9 hour working day limit or something.

There isn't an average price because students go about the price war even fiercer than companies. I think any company will make easily 5-10k for a print job like this.