I had submitted this to the support desk, and they recommended I post it here!
I'm trying to visualize our project-level data into a report, where we can see how many days a project has been open for. I have the created date column present, but is there a way to make a custom field saying, for example:
Created date = 7/18/2017 (yesterday)
Custom field Age = 1
For one day old?
Basically, creating a value of [Created Date] - [Today's Date] = VALUE.