how to show percent sign % in bold

[Bostonrose]

I need to use the % per cent sign as the character not words in a title and I need to bold it but nothing I try seems to make it bold. What am I doing wrong? Thanks, bostonrose

[drhowarddrfine]

span{
font-weight:bold;
}

<p>50<span>%</span></p>

Using it in a <hx> element won't work because it's already bolded.