NETWORKDAYS function minus 1 day

Hello,

I am currently working on a project that requires me to get the total number of business days between two dates. I have used the NETWORKDAYS function and it works great. However, I need a formula (if their is one) that will give me the total number of business days between the dates and either A) minus 1 from the total or B) not include the first day as an actual work day.

example.

Start date - 3/20/12
End date - 3/23/12
Total number of business days minus 1 = 3

I can do this if i use the function, copy and paste special and then create another row next to the total and do a =A1-1 all the way down but was just wondering if their was an easier way.

Any help with this would be much appreciated.