There are three main drivers of a stock’s return: growth, the change in price-to-earnings (P/E) multiple and capital return. While investors often focus on the growth angle, an upward rating in multiple can also be a significant return driver for bargain stocks.The following three bargain stocks have millionaire-maker potential. First, their forward P/E multiple reflects a 30% discount to the S&P 500’s valuation despite their solid growth prospects. If their P/E ratio matches the market’s multiple, these st ...