Price History Plugin for onePlace Articles
Record every single price change on your articles. With price history, you can add every purchase of your Articles, and set the selling price with every purchase.
This way you will have long term statistics about your costs, margins and retail prices over time for your articles.
Requires oneplace-core, oneplace-article
The easiest way to install this plugin is by using composer
$ composer require oneplace/oneplace-article-history