Chipotle quarterly restaurant sales down more than expected

(Reuters) - Chipotle Mexican Grill Inc on Tuesday said it expects sales at established restaurants to grow in the "high single digit" percentages next year, which would end a long string of declines following food safety lapses last year. Shares in Chipotle were down 1.4 percent at $400 in after-hours trading after the burrito chain said third-quarter sales at restaurants open at least 13 months dropped 21.9 percent. Analysts, on average, had expected a decline of 18.7 percent, according to trac