hello
I need help about merge duplicated data and summing & subtracting among multiple sheets , what I want when I fill data in any sheet then combined the data and summing , subtracting among columns contain value and show in sheet "inventory" I have about 5000 row data but I attached a simple file to understand my idea I put the result in sheet " inventory about the data and value I put one to understand how the formula how can be
thanks in advance
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