Excel - running % of running total in pivot table

Question

I have a table like:

periodo quintil pos
201611  1   10
201611  2   20
201611  3   30
201611  4   40
201611  5   50
201612  1   9
201612  2   19
201612  3   29
201612  4   39
201612  5   49

I need to create a pivot table like:

periodo quintil running_pos running_%
201611  
    1   10  7%
    2   30  20%
    3   60  40%
    4   100 67%
    5   150 100%
201612  
    1   9   6%
    2   28  19%
    3   57  39%
    4   96  66%
    5   145 100%

Since the running total is not a new field, but a way to show an older field (pos- show as total in quintil), the problem arises when I try to create the running % of the running total.

How can I introduce also this field (running % of running total)?

In spanish there's nothing with a name like running totals translation....

Answer 1

To display what you want in a Pivot Table - Drag pos to the values area three times - For the first, use the SUM - For the second, use the "show as running total" - For the third, use the "show as % running total"

Here are the results with minimal formatting

Here are the value settings for the third column: