(Reuters) - California utility PG&E Corp is preparing an $11 billion (8.7 billion pounds) debt-financing package as it prepares to exit from its bankruptcy, an investor involved with the company's funding plan said on Friday, sending its shares up more than 12%.PG&E's debt financing package, which will consist of high-yield bonds and term loans, is part of the company's previously announced plans to raise up to $27 billion in funding from future public offerings, said George Schultze, founder..