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Anonymous's avatar
Anonymous
Not applicable
6 years ago

subtracting rows in matrix visual

Hi,
I have a table containing different media types, the number of downloads and the date of the downloads. As I wanted to view the total downloads by the dates and media type, I created a matrix which looks like this...Now i need to add a row above the total, showing showing the difference between the latest two weeks. How do i go about this? 
Best,
akash