Nearly $30 billion is spent annually influencing tweens, who impact over 20% of parental spending. The document also notes that over 50% of smartphone users plan to shop via mobile this holiday season, while mobile point-of-sale transactions at Home Depot have increased by over 20% each week. It predicts that mobile transactions will account for 10% of all credit and debit card volume in 2013, and that mobile payments will grow to $90 billion by 2017.