Costs of Goods Entered Wrong Cost

[Dubsgames]

I have made and error on some items by entering the wrong cost, now when COGS report is ran my margins are not accurate at all. When I correct the issue regarding cost on the affected items in inventory the report does not reflect those changes. Is there a way to modify the report to reflect accurately or do I need to print out a spreadsheet with the corrected figures?

[Rich-NLEOMF]

Not a good way that I could find. 

The dirty way to handle it would be to zero out that inventory and re-PO/receive it with the correct COG.