Hello,
So i think you can do this by building a calculated metric
However, it's going to return a boolean (1=true/0=false) and does not do exactly what you want. That's the closest I could get
You may be able to play with that metric by putting it into a segment or finding a way to use it in your report?
My example below is based on 200 instead of 1,000

Here is the summary of that calculated metric:

Hope this helps along the way even if it's not a perfect answer....
Thanks - Christel