I want to subtract one column from another in a pivot table and I'm confused how should I write the expression. I know only 2 ways we can write it which are below.
1- Sum(ColumnA - ColumnB)
I got 4 columns in total. Year, Month, ColumnA and ColumnB and the problem is that I'm getting slightly different total when I use above expressions. I thought both expressions mentioned above should give me exact same result but its not. Can anyone please help me explaining the basic difference b/w abover expressions?