How to increment data by week in SQL - sql-server

Question

I am trying to find out the number of stores that had no sales for the last 4 weeks. Because of the way the grid is structured in DevExpress, I need to show the weeks as Wk1, Wk2, Wk3, Wk4 as columns (the data in these columns would be the store count of stores with zero sales).
Right now my data has the Sale Fiscal Week as a row. What I need it to look like is basically like:
Vendor | Store | City | State | Category | Wk1 | Wk2 | Wk3| Wk4
------------------------------------------------------------------------
Prairie Farms | #16141 | Adrian | MI | 2% Gallon | 1 | 0 | 1 | 1
Prairie Farms | #16141 | Adrian | MI | Whole Gallon | 1 | 1 | 0 | 0
instead of
Vendor | Store | City | State | Category | Sale Cal Wk | Sale Fiscal Wk
--------------------------------------------------------------------------
Prairie Farms | #16141 | Adrian | MI | 2% Gallon | 2015-10-23 | 38
Prairie Farms | #16141 | Adrian | MI | Whole Gallon | 2015-10-23 | 38
I have included my code which works so far. I have a count(store) function as 'ZeroStore' in the final select statement to indicate the store as a Zero Sales store.
BEGIN
-- SET NOCOUNT ON added to prevent extra result sets from
-- interfering with SELECT statements.
SET NOCOUNT ON;
IF 1=0
BEGIN
SET FMTONLY OFF
END
DECLARE #4WeeksAgo date
DECLARE #Today date
SET #4WeeksAgo = DATEADD(day,-28,getdate())
SET #Today = cast(GETDATE() as date)
DECLARE #maxweek as tinyint
SET #maxweek = case when (SELECT DGFiscalWeek
FROM scans.dbo.DimDate
WHERE CAST(Actualdate as DATE)=dateadd(dd,0,CAST(getdate() as DATE))) = 1 THEN 52 ELSE
(SELECT DGFiscalWeek FROM scans.dbo.DimDate WHERE CAST(Actualdate as DATE)=dateadd(dd,0,CAST(getdate() as DATE)))-1 END
DECLARE #LYear as int
SET #LYear = cast ((select max(FiscalYr) from Scans.dbo.Scans)-1 as varchar(6))
DECLARE #Year as int
SET #Year = #LYear+1
CREATE TABLE #Initialize
(
[Master Vendor] varchar (100),
[Dairy Vendor] varchar (100),
Store float,
City varchar (50),
State varchar(5),
District int,
Category varchar(20),
[Sale Cal Wk] date,
SaleYear int,
[Sale Fiscal Week] tinyint,
Units int,
Sales money,
Grade int
)
INSERT INTO #Initialize
SELECT DISTINCT
d.[Master Vendor], d.[Dairy Vendor], d.[Store],
City, State, District,
'2% Gallon',
CAST(MAX(ActualDate) AS DATE) AS [Sale Cal Wk],
DGFiscalYear,
DGFiscalWeek,
Units = 0,
Sales = 0,
Grade = 0
FROM
Scans.dbo.DGStores s
FULL JOIN
Scans.dbo.DimDate dd ON s.State <> 'XX'
FULL JOIN
Tableau.dbo.DollarGeneralDairyDistributors d ON d.Store = s.Store
WHERE
((DGFiscalYear = #LYear AND DGFiscalWeek >= #maxweek) OR
(DGFiscalYear = #Year AND DGFiscalWeek BETWEEN 1 AND #maxweek))
AND d.Store IN (SELECT Store
FROM DollarGeneralDairyDistributors)
GROUP BY
d.[Master Vendor], d.[Dairy Vendor], District, d.Store,
DGFiscalYear, DGFiscalWeek, City, State
INSERT INTO #Initialize
SELECT DISTINCT
d.[Master Vendor] ,
d.[Dairy Vendor] ,
d.[Store],
City,
[State],
District,
Category = 'Whole Gallon',
cast(max(ActualDate) as DATE) as [Sale Cal Wk],
DGFiscalYear,
DGFiscalWeek,
Units=0,
Sales=0,
Grade=0
FROM
Scans.dbo.DGStores s
FULL JOIN
Scans.dbo.DimDate dd
ON
s.State <> 'XX'
FULL JOIN
Tableau.dbo.DollarGeneralDairyDistributors d
ON
d.Store = s.Store
WHERE
((DGFiscalYear = #LYear AND DGFiscalWeek >= #maxweek) OR (DGFiscalYear = #Year AND DGFiscalWeek BETWEEN 1 AND #maxweek))
AND
d.Store IN
(SELECT Store
FROM DollarGeneralDairyDistributors)
GROUP BY d.[Master Vendor], d.[Dairy Vendor] ,District, d.Store, DGFiscalYear, DGFiscalWeek, City, State
CREATE TABLE #Update
(Store varchar(15),
Category varchar(25),
FiscalYr int,
FiscalWk tinyint,
Units int,
Sales money)
INSERT #Update
SELECT DISTINCT Store, Category, FiscalYr, FiscalWk,
isnull(sum(isnull(SumUnits,0)),0) as Units,
isnull(sum(isnull(SumSales,0)),0) as Sales
FROM scans.dbo.Scans sc
JOIN [Scans].[dbo].DollarGeneralDairyCategory c
ON sc.ItemSku = c.ItemSku
WHERE
FiscalYr >= #LYear
GROUP BY[Store], FiscalYr, FiscalWk, Category
UPDATE #Initialize
SET Units = u.Units,
Sales = u.Sales,
Grade=100
FROM #Update u
WHERE #Initialize.[Sale Fiscal Week] = u.FiscalWk AND #Initialize.SaleYear = u.FiscalYr
AND #Initialize.Store=u.Store AND #Initialize.Category = u.Category
SELECT *
, COUNT(store) AS 'ZeroStore'
FROM #Initialize
GROUP BY [Sale Cal Wk], [Master Vendor], [Dairy Vendor], Store, City, State, District, Category, SaleYear, [Sale Fiscal Week], Units, Sales, Grade
HAVING SUM( Units) = 0 AND [Sale Cal Wk] BETWEEN #4WeeksAgo AND #Today
drop table #Initialize,#Update
END
Thank you very much for any input or help.