Sally Beauty Holdings, Inc. posted financial results for its first quarter ended Dec. 31, 2018. Consolidated same store sales increased 0.3% in the quarter. Consolidated net sales were $989.5 million in the first quarter, a decrease of 0.6% compared to the prior year.   “We are making steady progress against our transformation plan and remain on track with our plans for the remainder of the fiscal year,” said Chris Brickman, president and chief executive officer.  “Our North American retail bu...