Shares of Guess? (NYSE:GES) slipped 10% after the company reported earnings late Wednesday and predicted an unsatisfactory first quarter.The company reported Q4 EPS of $1.05 in-line with analyst estimates. Revenues for the quarter rose 2.5% year-over-year to $776 million, missing consensus estimates of $778.53 million.Guess? (NYSE:GES) has potential upside of 7.6% based on a current price of $36.70 and an average consensus analyst price target of $39.50.