Price to earnings. Market cap divided by profit. It is loosly associated with how long until you can make back your investment with current revenue.

If you have a business that makes $1/year after costs and taxes and are selling it for $20, your P/E is 20.

Price to earnings ratio, or P/E, is a way to value a company by comparing the price of a stock to its earnings. The P/E equals the price of a share of stock, divided by the company's earnings-per-share. It tells you how much you are paying for each dollar of earnings.

i suppose price/earnings ratio