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BOSTON (AP) -- Holiday shoppers in Massachusetts can have confidence that the checkout scanners at their local stores are working properly.

The Division of Standards released the results of its annual survey of retail scanners Wednesday, finding a 99.8 percent accuracy rate.

Officials from the agency checked 98 stores representing 50 retailers across the state, from clothing to electronic stores.

Of more than 2,800 items scanned, only five overcharges were found at five separate stores. The highest overcharge was $3.80.

The survey compared the prices as marked on the actual item or on shelves against the price at the checkout counter.

Overcharges occur when the checkout price rings in higher than the listed price. The division issued a $100 dollar fine to each of the five retailers that had overcharges.

Last year's survey found an accuracy rate of nearly 99.6 percent.