WORKDAY() results appear to be inconsistent...
 

The WORKDAY() function uses the following arguments...
- Start_date
- Days = the number of non-weekend and non-holiday days BEFORE or AFTER the
start_date

I'm experiencing results that do not appear to be consistent. Have a look at
the file posted at http://dplum.com/excel/Project-Workdays.xls

WORKDAY() seems to drop any decimal portion of the argument for "Days" and
then adds 1 day... am I interpreting the results correctly?

Since the "Days" argument asks for the # of days BEFORE or AFTER the
Start_date then it would appear that the Start_date itself is not to be
included in the Days argument -- is this correct?

Also, why would the decimal value for the "Days" argument be ignored? Does
this also have to be compensated for in assigning the value for this argument?