AAA Michigan says gas prices statewide have fallen by about 10 cents per gallon in the past week.
The Dearborn-based auto club says late Sunday that the average price for self-serve regular unleaded gasoline was about $2.57 per gallon. Prices are about 25 cents more than at the same point last year.
Michigan's lowest average price was about $2.43 per gallon in the Traverse City area. The highest was about $2.72 per gallon in the Marquette area.
The Detroit-area's average decreased about 4 cents to about $2.57 per gallon.
AAA Michigan surveys daily fuel prices at 2,800 gas stations across the state.