HEATHROW, Fla. ( TheStreet) -- Ruth's Hospitality Group ( RUTH - Get Report) missed second-quarter profit expectations as beef costs pressured results.

The operator of Ruth's Chris Steak House restaurants said its earnings in the period ended June 26 more than doubled to $8.5 million, or 20 cents share, from a year-earlier profit of $3.7 million, or 9 cents per share. Adjusted for one-time items, EPS came in at 10 cents, issing analysts' consensus by a penny.

Total revenue grew 4.8% to $92.6 million, but the line item also missed expectations, which had been for net sales of $93.3 million.

Ruth's said comparable same-store sales -- or sales at stores open at least one year, a closely watched metric in the restaurant industry -- increased 5.8% at its namesake Ruth's Chris Steak House, while they decreased by 1.4% at Mitchell's Fish Market restaurants.

Ruth's said food and beverage costs, as a percentage of sales, increased 120 basis points to 30.5%, primarily due to unfavorable beef costs.

Shares of Ruth's were unchanged in premarket trading Friday after closing 4.1% lower at $5.90 in Thursday's session.

-- Written by Miriam Marcus Reimer in New York.

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