preg_match_all() help



I can't seem to get my preg_match_all() to work.

I have a HTML file setup like
...
<tr>
<td><a href="#">Overall rating</a>: </td>
<td> 98% </td>
</tr>
...

And i am trying to extract just the 98% using preg_match_all(). I am
completly new to using preg_match_all() and completly lost. Could
someone give me some guidance please.

Thank you so very much!

QB
.