Where October’s used-car sales are headed

When the final results are tallied, look for October’s used-car sales market to be down double-digits from a year ago, but steady with September.

In a forecast released Friday, TrueCar projected slightly less than 3 million used-car sales for October, which would be a 13% year-over-year decrease and static month-over-month.

Through nine months of the year, there were …