I'm looking to determine how many hours are assigned to specific stage for a given week.  Goal being I have "X" number of man hours available for a given week and if I've assigned 300% of that this week but 25% of it next week I need to know I've got shift resources or tasks around.
 
I've got report that shows me all the tasks, hours, dates, etc.  I just can't "sumifs" on a report. 
TIA - Adam