Shares of Jack in the Box Inc. fell more than 4% late Wednesday after the fast-food company reported mixed fiscal second-quarter results, with per-share earnings above forecasts and sales below Wall Street expectations. Jack in the Box said it earned $47.6 million, or $1.62 a share, in the quarter, compared with $33.1 million, or $1.06 a share, in the year-ago period. Revenue fell to $210 million, from $266 million a year ago. Analysts polled by FactSet had expected GAAP earnings of 87 cents a share on sales of $213 million. Same-restaurant sales fell 0.1% in the quarter. The company said it expects same-store sales between flat to rising 1% in the third quarter, the same expectation for the full year. Jack in the Box shares ended the regular session up 1.1%.