PARIS - A return to growth in its struggling Gucci brand helped French luxury and sports clothing group Kering post Friday a glittering 32-percent leap in net profits to 696 million euros ($773 million) last year. While group operating profit dipped one percent, sales climbed 15.4 percent in nominal terms to 11.58 billion euros. The French luxury group had been weighed down by a slowdown in sales at its flagship Gucci brand but a turnaround engineered by new creative director Alessandro Michele appears to be bearing fruit.