But be very careful about providing these Numbers if you "re moving to a new city with a different marketplace and cost of living."

但是如果你迁移到一个新的城市，市场价和生活费用都与以前不同，那么就要小心提供这些数字。

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Mr Holtham added: "It's very important therefore to be careful in negotiations and also to make sure that the projects you're spending it on are really worthwhile for the economy because you will be paying for them".

BBC: Wales