What was the original question?

"Barbara" wrote:

Hi again,

I still have a problem!!! In this list, with your formula, it returns 16
days. But the right answer is 14. Why? How can I have the right answer?
02-Dez
02-Dez
02-Dez
02-Dez
02-Dez
02-Dez
02-Dez
02-Dez
03-Dez
07-Dez
07-Dez
09-Dez
10-Dez
10-Dez
13-Dez
13-Dez
13-Dez
14-Dez
14-Dez
15-Dez
15-Dez
15-Dez
15-Dez
16-Dez
16-Dez
17-Dez
17-Dez
17-Dez
20-Dez
20-Dez
21-Dez
21-Dez
21-Dez
21-Dez
21-Dez
22-Dez
22-Dez
23-Dez
23-Dez