Nike Inc. warned buyers that gross sales will take a success later this 12 months as it really works to realign merchandise to raised match what consumers need to purchase.The world’s largest sportswear retailer expects income to fall by low single digits within the first half of its fiscal 12 months, which begins in June. Analysts had projected a 4% rise within the first quarter and a 6% acquire within the second, based on estimates compiled by Bloomberg.