Hi Lydia, if you just need to see the number, you can click at the bottom of your column and it to "Average", which should get you what you're looking for
![Screenshot 2023-01-09 at 3.41.31 PM.png Screenshot 2023-01-09 at 3.41.31 PM.png](/t5/image/serverpage/image-id/24398i7A93404750B18412/image-size/medium?v=v2&px=400)
If you need to actually use the number (e.g. sending it in an email), I'm afraid you'll need to either:
1. Link all of your records to a single record in another table and use a rollup formula there
2. Use a script (Pro plan only)