The months-long discussion about whether to raise Michigan's sales tax by a penny is nearing an end. Voters will decide the issue next Tuesday. According to Michigan’s ‘Citizens Research Council,” the measure would eventually generate about an additional $1.3-billion to be spent on the state’s roads and bridges. It creates a new formula for assessing the state’s gas tax, which would be tied to the wholesale price of gasoline. At current prices, it would go up about 10 cents per gallon. Whatever the increase, it would be lessened somewhat by the removal of sales tax from gasoline.