formula using dates
I need a formula that does the following:
If A1 is between(and including) 1/1/08 and 1/31/08 I need 12/31/07 returned.
I need that done for each of the 12 months, ie if A1 is between (and
including) 2/1/08 and 2/28/08 I need 1/31/08 returned.
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