From The Help Files:
Adagio Inventory can use five different costing methods. These costing methods are indicated in control account sets. This allows you to have different costing methods for different control accounts sets.
For example, you might define one control account set with a moving average method, and another with a FIFO (first-in-first-out) costing method. You can then assign these different control account sets to items using the Edit Items function.
FIFO
FIFO stands for ?First In First Out.? A FIFO costing method determines the Cost of Goods Sold using the first units received. This assumes that items in the beginning inventory were sold first. Expressed as a formula, the FIFO costing method looks like this:
Total Cost in First Lot / Total Quantity in First Lot = Average Cost of First Lot
Average Cost of First Lot x Quantity Shipped = Cost of Goods Sold
LIFO
LIFO stands for ?Last In First Out.? A LIFO costing method determines the Cost of Goods Sold using the last units received. Expressed as a formula, the LIFO costing method looks like this:
Total Cost of Last Lot / Total Quantity of Last Lot = Average Cost of Last Lot
Average Cost of Last Lot x Quantity Shipped = Cost of Goods Sold
Moving Average
The moving average method bases the Cost of Goods Sold on the average cost. Expressed as a formula, the average cost is calculated by:
Quantity on Hand / Total Cost = Average Cost
Average Cost x Quantity Shipped = Cost of Goods Sold
Standard Cost
The standard cost method is similar to the moving average costing method except that the standard cost method calculates a variance between the moving average and standard cost.
User Specified
This costing method allows you to enter the cost for each item when processing invoices and shipments. Use this costing method on items that you wish to ?force? a cost amount.
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Recent Cost and Standard Cost are "reporting fields". The G/L entries depend on what Account Set you are assigning to the item.
Have a look at Edit Account Set.