@Mir: No - it is what I said: Yearly salary is 330.000 based on monthly salary plus some fixed extras for vacation etc, giving a total of appr 350.000 for CRJ.
Per-diem is per 24 hrs, and would range between 5000 and 10.000 per month, depending on how many nightstops you get. CRJ pilots are in the high end unless you bid only day trips. Taxation is depending on where you live. I live in Norway and are based in CPH, which result in no tax on per-diem.