Copying daily data from one tab to a weekly summary table

I have been working on this for a little while now and can't seem to grasp
the right formula to use. I have columns of data sorted by name to be
tracked daily. I need to then give my boss the information so she can not
only see it daily and monthy which I have figured out - but wants to see
weekly as well and thats where im stumped.

The formula I am using to get the week number populated works great and is
=WEEKNUM(Table1[[#This Row],[Ddate]])

What I need to do is get totals from "Table2" to "Table3" into a weekly
format instead of daily. So in essence everything that says week 1 next to
it - totaled onto table3 in tab 2.

Any input on this delema would be greatly appreciated!