FIFO charges the newest costs against revenues on the income statement thus matching the current cost of replacing the units with current revenues.

FIFO

FIFO, or First-In, First-Out, is an inventory valuation method where goods first bought are the first to be sold, affecting cost of goods sold and inventory valuation on the balance sheet.

Revenues

The total amount of income generated by the sale of goods or services related to a company's primary operations.