Per Explained: Meaning, Types, Process, and Use Cases
`Per` is a small word with a big role in finance and accounting. It usually means “for each” and helps convert raw totals into comparable measures such as cost per unit, earnings per share, revenue per customer, or interest per year. Because good analysis depends on comparing like with like, understanding how `per` works is essential—and in some investing contexts, uppercase `PER` can also refer to the price-to-earnings ratio.