plugin for price comparison

Hi,

Is there a plugin that would help user to compare prices?

I’m trying to make same kind of comparison like some webpages have for the restaurants. Restaurant A lunch costs: 10euros
Restauranta A coffee costs: 5euros
Restaurant B lunch costs: 21euros
Restaurant B coffee costs: 6euros.

Prices of restaurant A are listed in Restaurant A wordpress-page and Restaurant B prices are listed in Restaurant B wordpress-page.

Then theres page which shows most expensive restaurants or restaurant with cheapest coffee. I hope you guys understand what I mean.