Mathematical operation

[shumy300]

Hello everyone, do any of you know how to divide the price displayed for the value of a feature of the product itself?

I sell on sale in tot packs. On the product sheet I added the following features: "pieces" with the number of pieces and "product type" with the name of the product.

An example of a product is this: Pack of 300 capsules, price 50 euros.
I would like to understand how to divide the displayed price (VAT included) for the number of "pieces" indicated in the feature and add next to the "product type" field that would simply be "capsule".
es. the result shown on the product sheet should be something like "€ 0.16 per capsule".
ps. there is also a need to round off the final price.

Thank you.

[shumy300]

Umm... my request concerns the technical side, such as what files to modify ........

for example, the "pieces" feature in which table do I find it?

Edited October 27, 2017 by shumy300 (see edit history)