A column called 'Pool' exists in my data source.
There are roughly three values in the column:
| Pool |
| B |
| C |
| B |
| A |
As you can see, there are three different values: A, B, and C. I'd want to make a funnel, which is simply a bar chart that will compute and count each of those three numbers in the entire column. I know I can't just put the column in the sheet since I also want a fourth bar that counts all of the values as a "All" category.
As a result, having a visual that says (but this is in tabular form to help illustrate what I mean)
All | 40
A | 5
B | 20
C | 15