How can I break line in the XML?

How can I break line in the XML in a specific part?

[COLOR=#000000]I want this
[/COLOR]DE R$ 999,99 POR 666,66

To be this.
DE R$ 999,99
POR 666,66

XML:
<price>DE R$ 999,99 POR R$ 666,66</price>

AS:
price_txt.Text = priceID;

I can not put a line break in xml.