Click on the View formula history hyperlink:
You will have the following information available to review:
- Date: This will display the date the formula was run.
- Activity: What activity was taken on this formula.
- Processed: How many records were processed.
- Exceptions: If any records went to Exceptions, and how many.
- Pages: You will be able to navigate to the previous page or next page, and see which page you are on.