The default currency used in Grisbi is Euros, but you can easily change that to other currencies.

Grisbi中默认使用的货币是欧元，不过可以很容易地更改为其他货币。

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Even if they do not resort to outright default, they can always achieve partial default through currency depreciation.

ECONOMIST: Central banks and the bullion price

They will default, their currency will lose value, and high inflation will result, causing higher unemployment and a further erosion of their economy.

FORBES: 8 Things That Are Most Likely to Occur!

If Romania were to default, the currency could collapse, imports would plummet, growth would slump even faster, and an already impoverished people would see their standard of living dive still further.

ECONOMIST: Romania