You can get really complex with this (using templates, and OO Perl) which is great but you have a learning curve ahead of you. So, since you are pretty new I suggest this:

1. Add your script to a cron task
2. Have your script output its result to a text file in a web accessible directory
3. Use SSI (server side includes) on your web site to include that text file on the page you want to display it
4. Option: You can have SSI execute your Perl script which will do the same thing. But, without looking at your script I'd go with the cron (it's a bit safer).

This is quick and dirty and is fairly easy to implement. But, keep in mind it is quick and dirty. Where something like this gets out of hand is when you have a bunch of these sort of scripts scattered throughout your site. Don't do that :)