Yahoo Finance -- Participating Taco Bell® restaurants across the U.S. will donate 15 percent of their gross sales on April 23, 2009 to the Taco Bell Foundation for Teens (the "Foundation")--the company's non-profit organization dedicated to helping teens graduate from high school and be prepared for college, careers and life. This nationwide campaign aims to double the Foundation's annual giving goal. At the same time, the Foundation is providing consumers a chance to win one of four $25,000* scholarships as an added bonus.