I need need the number value given by the difference between the sum of values in column A and the sum of values in column B to appear in my Dashboard.
I have tested the new release of Dashboard Hub but find it rather slow to process the data.
Not sure if this is along the lines of what you’re looking for, but is it possible for you to set up a formula column to subtract the 2 numbers columns to pull the difference in the summary, as shown below: