Richmond Mayor Gayle McLaughlin is pushing a revamping of the way the city assesses business license fees that would bill Chevron's refinery $26.5 million a year, a sum that would boost Richmond's revenue by about 20 percent. According to the San Francisco Chronicle, the ballot measure would change the license fee from counting the number of employees to assessing the amount of raw materials processed by manufacturers, and since raw material is what the refinery is all about, that means a big spike for Chevron. A previous change, that applied to landlords and some small retail businesses, went down to defeat in 2006. Now, the new measure would restrict the change to manufacturers. The Chamber of Commerce is opposed to the plan, claiming that it would hinder new businesses from starting up.