All of the state’s funding for community colleges is based on enrollment numbers. But in an attempt to make good on the system’s goals for increasing degree and certificate production, boosting transfers to the state’s public universities, and curbing achievement gaps among underrepresented students, the funding formula in three years would tie 40 percent — or almost $2.5 billion — of state support to measures of student success and enrollment numbers of low-income students. It also would increase overall funding to $7.4 billion.