Xslt transformation issue

Guys,

I’m wondering if somebody has similar issue. Simple, I’m doing some transformation using LS language. (xsl+xml=html). The xsl file line, which is not working properly, is this one :

<xsl:value-of select=“format-number(Price,‘#%’)”/>

I’m focusing on “format-number” xslt function.

I know that the function is not working/supporting in version 6. Seem to be it’s not working in version R8.5 as well. Does anybody has the same problem ?