The University of California will need to charge students at least 6 percent more for tuition next fall - an extra $732 - to stave off more layoffs and program closures, say UC leaders who will ask the regents next week to consider raising the price in July. "At minimum we'll need 6 percent," said UC's budget czar, Patrick Lenz, noting that an increase of that size would take care of most of the $139 million shortfall expected for next year. The problem, Lenz said, is that all of those numbers could get worse. Gov. Jerry Brown recently suggested that the state's $9.2 billion deficit may have grown by $1 billion, largely because the state received less in corporate taxes than anticipated.