Add BASE PRICE (GRUNDPREIS) for each product

Site URL: https://goldfish-koi-xjg4.squarespace.com/config/

Hi @tuanphan

According to the german law I have to always put an additional price (base price that reflects the price per 100g, 100ml, 1kg or 1l) additionally to the usual product price. 

I found a very basic work around, where I put this info in the title description, pictures are here attached. But I am wondering if I cna use a code or anything else in order to have a better, less manual way of having this info on the site?

Ideally it would be like on one of the screenshots, where the base price is a separate entry and is not affecting design for the later steps.

Thanks!