You did not mention about your qualification and the position you are holding in Saudi Arabia. The remuneration package is depending on your qualification and experience. Qr. 7500/- is not bad for a bachelor but with a family it will be bit difficult to survive. Cost of living in Qatar is quite high now a days and if your company can provide you accommodation or an extra allowance then it will be ok. Please note that even if you can find a cheaper accommodation somewhere in Qatar it will not be less than Qr. 4000/- to 4500/-. Then you should think about other expenses like food, school, Water & Electricity, transportation etc. for which you need a similar amount. If you are planning to live with your family the Salary of Qr. 7500/- will not be enough to meet the growing cost of living in Qatar.