Advertisement Kohl's said comparable sales plummeted 9.3% in the third quarter.Apparel and footwear sales struggled despite strong performances for Sephora and other categories.Growth in revenue from beauty sales at Sephora was one of the few rays of hope.Kohl's continues to fight an uphill battle after sales tumbled following missed opportunities, a decline in footfall, and an overreliance on its partnership with Sephora.Comparable sales at the department store chain fell 9.3% in the three months to Novem ...