Gas prices in Michigan have dropped 11 cents per gallon from last week, AAA-The Auto Club reported Monday. The average cost of $3.15 per gallon for regular unleaded is 5 cents less than this time last month and 43 cents less than this time last year. At that rate, motorists are paying an average $47 for a 15-gallon tank of gasoline.

The insurance company says that Michigan drivers are paying an average of $3.27 per gallon this week, up 12 cents from last week and 16 cents from last month, but still down 32 cents from this time last year.