It means that if you did the last change, and properly reset the FSS, that you now have 9,300 miles on the car since the last change.
Since you just bought the car, do the oil change and reset the FSS, then you will know when to do it again.
When you reset the FSS, you will see 7,000 miles displayed.
It's all covered in the owner's manual, if you don't have one, you can download one from the below link.