I'm trying to figure out a formula or if statement to determine how many nights in the month of december were used.
Ex: Arriving 12/15/12 to Departing 1/5/12 = 17 nights (calculating Dec 15 to Dec 31)
Ex: Arriving 11/20/12 to Departing 12/5/12 = 4 nights (calculating Dec 1, 2, 3, and 4)
Any help would be awesome.
Thanks!
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