Measure Problem in calculating a delay

Dear PowerBi community:

I would like to ask for your help in correcting a formula that does not work correctly.

What I would like to create is a measure that computes the a delay through a series of weeks.

I think it would be clearer if I show you an example:

I have two dates column (Planned and Actual) associeted to a document:

Because Date Actual is higher than Planned the document is in delay.

So, in my visual I should obtain for  January 2 (end of the first week) 6 days of delay

for 9 january 13 days of delay, and so on.

Then, I would like to repete this procedure for a wider list of document.

For instance, the 30th of January I will have the delay of Doc 3 and Doc 8 (12 days) + the delay of  Doc 7

This calculation should be done until the date of actual. Therefore, after February 24 I should not have any overdue document.

For this scope I created this measure:

With this calendar table:

and with these reletionships:

What I obtain is this:

The Doc Code 7 of 2rd of January is 6 Days late (which is correct).

However, when I look at the 9th of january the delay of this document is not recorded in the visual (there should be 13 days of delay as I said before). The next value which is shown in the visual refers to the others 2 documents planned for 24 of january (for which the actual date is later in February) and the delay is 12 days ( and therefore it still does't take into account the delay of doc Code 7 which was received the 9th of February).

Do you have any idea how I can correct my measure?

Sincerely,

Francesco.