I have mentioned in an item card costing method FIFO if item is purchasing with various rates at the time of issue how can i calculate consumption value as per FIFO base.
Well the system will do this for you and when you run the adjust cost all of the appropriate costs will be posted. Not sure what your question is here - are you trying to calculate it for a report or something?
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Initially, the system will take out the item based on the cost specified on the Unit Cost field (if you're not using Standard Cost). Then when you run the adjust cost process, it will adjust it according to whatever you setup as the Costing Method on the Item Card.
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