LubeLogger is not an inventory management system. Unit costs are calculated as an average of total spent / quantity, which means that everytime you replenish your supplies, it will average out the cost even if the latest batch of supplies you purchased is significantly costlier than the last batch. There is no LIFO/FIFO/FAFO inventory valuation methods.
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### Supplies Requisition History
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To view supplies that have been requisitioned for a specific record, simply click on the yellow Shop button to the left of the Delete button