Repeat content across various posts and pages

Hi all,

I was wondering if someone could shine a little light on the best way to achieve my goal.

On my website design I have a column that contains a pricelist which I want to be visible on each post page and also various pages I create, how do I set this up in such a way that if I update this pricelist on one page it will be reflected across all the pages that contain it?

Regards
Kyle