Solution
You can retrieve an overview of sold weaned piglets by going to:
[1. Animal Records] - [5. Checklists] - [3. Departures]
Category 'Piglets'
For 'Departure type', select 'Sales', 'Internal transfer', or 'All departures'
Select the desired period using 'Start date' and 'End date'
Select 'Print preview' or 'Print'