Hi,
In the plugin’s settings Orders > Refunds > Refund Calculations, you will find the settings for refunds. There are 4 options here.
1. Ignore refunds from profits
2. Subtract total refunded from profit
3. Subtract each item’s refund amount from profit
4. Calculate profit by the difference between Net Payment and Cost
It’s necessary to add the Refunded status on Tools & reports > Orders report: Order status option in order to see refunded orders on reports.
You need to enable Advanced > Force costs update options to automatically calculate refund costs.