The Spanish in Spain are still mostly thinking in pesetas, and most prices (for cars, homes, luxury items, etc.) are stated in both Euro and pesetas, so I think you should state both if this translation is for Spain. If not, please let us know the target audience.

Ref. www.xe.net/ucc (currency converter)
and experience

Hope it helps.

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Note added at 2002-11-11 09:57:51 (GMT)
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You can of course either use the Euro symbol or write out the word.

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Note added at 2002-11-11 09:58:59 (GMT)
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\"euros\" is all lowercase, sorry about the typp :P

Según las normas del diario El País. Pero no con letras. Si quieres poner el símbolo, sería 1.150 €.
Suerte.