I am buying 2 bundles of jars and one bundle contains 80 jars and now I want to sell only 40 jars so how can I sell it in manager.io:

I am buying 2 bundles of jars and one bundle contains 80 jars and now I want to sell only 40 jars so how can I sell it in manager.io:

There are already dozens of topics on the forum about buying and selling with different units of measure. I am closing this topic.