Percentages in two columns in a pivot table

[D_Williams]

I have a pivot table that's showing details of edits done to some data. The rows show the edit reason and there are two columns: one that looks at the last 7 days, and the other looks at earlier data.

When I simply want a count it all works fine, but what I'm after now is to add percentages. If I try this:

count(reasoncode)/count(Total(reasoncode))

it gives me a percentage for each cell based on the total number of edits irrespective of the date. (see below) What I need is a way to divide by the total edits within the timeframes specified by the columns.

cheers

[lorenzoconforti]

Looks like Last7 and Earlier are defined as dimensions; try define them as measures (i.e. create two measure with set expression within them)