I would like this information to be rolling sum of columns. For example, first column would be Q1,.......to Q12. The triangle would look inverted. The last row would only have on cell column 1 (Q1). The second to last row would have 2 columns which include everything in q1 and q2 would be rolling sum and so forth. I am having trouble putting this together. Any suggestions?
Would you be able to post a sample workbook (twbx file)?