Cost of living in Nagasaki (Japan) is 21% cheaper than in Al Mubarraz (Saudi Arabia)
WARNING! This comparison is based on only a few data points. At this point it is only a guess. It is based on 17 prices entered by less than 5 different people.
For example, to keep the same standard of living that would require ﷼ 14,000 in Al Mubarraz you would need to make just about ﷼ 11,028 (¥333,952) in Nagasaki.