I have created a mileage log in Excel 2003. I have also added a dropdown box
where the user can select whether the mileage is used on a "personal" or
"business" basis.

i.e.
Odometer Reading
Select Purpose Start Finish Mileage
Personal 2500 3000 500
Business 3000 3250 250
Personal 3250 3255 5
Business 3255 3355 100

Total of Personal Mileage Used: 505 km
Total of Business Mileage Used: 350 km

I have two separate cells that say: " Total of Personal Mileage Used:" and
"Total of Business Mileage Used:" What I am looking for is to be able to
total all of these based on what has been selected "personal" or "business."
I am unsure how to do this and do not know the formulas well enough to
implement them.

If someone can offer suggestions, examples etc. it would be greatly
appreciated.

Thanks!