Why can't you just use SUM? The data you show looks like it is hours and decimal part of the hour (2.67), not seconds so a SUM should work. Do you want to show hours and minutes instead of hours and decimal part of the hour (2.67)?
Jack Corbett
Consultant - Straight Path Solutions
Check out these links on how to get faster and more accurate answers:
Forum Etiquette: How to post data/code on a forum to get the best help
Need an Answer? Actually, No ... You Need a Question