Before moving abroad, think about the cost of living in your new country and the expected monthly budget needed to live comfortably. Location is key as some international countries and cities are more expensive than others (i.e.: Singapore versus Vietnam.) Also, the number of people moving is another factor.
Helpful items to research: the cities and neighborhood areas that you want to live in, what type of accommodations you're looking for (apartment, studio, or house), cost of monthly utilities, food prices, health insurance, transportation, fun activities, and school (if your family is moving abroad). You'll also need to figure out the initial cost of moving abroad with the visas and shipping your stuff.
While it can be daunting to figure out the cost of living, this will help determine whether or not you want to experience a new opportunity living abroad.