I'm trying to determine our top sellers. I'm putting the title compared to the number of records, where the number of records is a quick table calculation of percentage of all sales.
I can get a separate column that will show the difference of the amount of records from the previous record, and I can get a percentage difference from the previous record. However, I want the difference between the actual percentages.
In the second column, I would like -0.57%, -0.43%, -0.09%, etc.