Minus workdays from dates
I'm trying to minus days from dates using the following formulas but am getting errors everytime:
=NETWORKDAY([Date Printed]8 - [Date Dispatched]8) - gives me the error #Incorrect Argument Set
=NETWORKDAY([Date Printed]8, [Date Dispatched]8) - gives me #Invalid Data Type
What i'm trying to do is find out how many days it takes for an order to be dispatched, i have one column with the [Date Printed] and another column with [Date Dispatched].
SUM([Date Dispatched]11 - [Date Printed]11) works, but i want to exclude Saturday/Sundays.
Appreciate any help, thanks,