yanyan0116,
(Hope I can help you)
1) The monthy salary is around MOP$ 2,500.00. Most people are paying this amount, some of them are even cheaper, all depends on the agreement you make.
2) I have no idea about that. I know it's not easy for a bunbun to stay in Macau and look for a job, because if you don't have someone to sponsor you to work in Macau, the imigration will not give you a visa to stay.
Hope this information can help you!