Procter & Gamble reported better-than-expected earnings for the fourth quarter, but quarterly revenue fell short of analyst estimates. Volume increased for P&G for the first time in over two years, excluding price impacts, indicating stronger demand for products. Over recent years P&G grew sales through price hikes, but volume had been flat or declining as consumers bought less. Key brands include Tide detergent, Pampers diapers, Bounty paper towels, and Charmin toilet paper. P&G shares fell 2 in premarket trading following the results.