Multiple Sum columns in different tables

I have the following two tables

Table: Daily

Product     Date1             OrderNumber    Boxes
A                 01/05/2015          123                        5
A                01/06/2015           234                        1
A                01/07/2015           235                        1
C                01/15/2015           345                        2
C                01/16/2015           456                        4
D                02/01/2015           567                         7
D                01/02/2015      678                         3
D                01/02/2015      689                         3

Table: TBF

Product            Week      Year      Boxes   Period
A                         1               2015      4             1
A                         1               2015      4             2
C                         2               2015      1             1
C                         2               2015      3             2
D                         5               2015      5             1      
D                         5               2015      10            2

I need the sum the boxes in Daily grouping by year, weeknumber and product. I then need to sum the boxes in FC for the same Week, year and product.

This is the query I have but its giving the wrong number for Sum(Boxes) in TBF

SELECT Daily.PRODUCT, Year(Daily.DATE1) AS DYear, Val(Format(Daily.DATE1,"ww",1,2)) AS DWeek, Sum(Daily.[BOXES]) AS DBOXES,
Sum(TBF.BOXES) AS SumOfBOXES
FROM Daily LEFT JOIN TBF
ON (((TBF.PRODUCT)=[Daily].[Product]) AND ((TBF.YEAR)=Year([Daily].[DATE1])) AND ((TBF.WEEK)=Val(Format([Daily].[DATE1],"ww",1,2))))
GROUP BY Daily.PRODUCT, Year(Daily.DATE1), Val(Format(Daily.DATE1,"ww",1,2));