My business credit card got hacked. For months, we were being charged for items that were classified as Cost of Goods Sold. We discovered this at the end of last month. Now we are going to be credited back for the fraudulent charges. For this month, if we have $10K of Cost of Goods Sold, but we are being credited $4000 for the prior 3 months fraudulent charges from out credit card. Would I simply record this month's Cost of Goods sold as $6K on my P&L?