CREATE TABLE [dbo].[GoodsSale]
	( 
		[Id]					INT IDENTITY(1,1) NOT NULL,		
		[IdGoods]				INT NOT NULL,
		[IdStore]				INT NOT NULL,
		[IdSalesPoint]			INT NOT NULL, 
		[Date]				DATETIME NOT NULL,
		[SalesDocCount]			INT NOT NULL,
		[ChequesDocCount]		INT NOT NULL,
		[SalesSaledQuantity]	        MONEY NOT NULL,
		[ChequesSaledQuantity]	MONEY NOT NULL,
		[SalesSupplierSum]		MONEY NOT NULL,
		[ChequesSupplierSum]	        MONEY NOT NULL,
		[SalesSalesSum]			MONEY NOT NULL,
		[ChequesSalesSum]		MONEY NOT NULL,
		[RowVersion]			TIMESTAMP NOT NULL,
		CONSTRAINT [PK_GoodsSale] PRIMARY KEY NONCLUSTERED ([Id]),	
		CONSTRAINT [UQ_GoodsSale$IdGoods$IdStore$Date] UNIQUE CLUSTERED ([IdGoods],[IdStore],[Date]),
		CONSTRAINT [FK_GoodsSale$IdGoods] FOREIGN KEY(IdGoods) REFERENCES Goods(Id),	
		CONSTRAINT [FK_GoodsSale$IdStore] FOREIGN KEY(IdStore) REFERENCES Store(Id),	
		CONSTRAINT [FK_GoodsSale$IdSalesPoint] FOREIGN KEY(IdSalesPoint) REFERENCES SalesPoint(Id),
	)

	CREATE NONCLUSTERED INDEX [IX_GoodsSale$Date$IdGoods$IdSalesPoint]
	ON [dbo].[GoodsSale] ([Date])
	INCLUDE ([IdGoods],[IdSalesPoint],[SalesDocCount],[ChequesDocCount])

	CREATE NONCLUSTERED INDEX [IX_GoodsSale$Date$IdGoods$IdStore]
	ON [dbo].[GoodsSale] ([Date])
	INCLUDE ([IdGoods],[IdStore],[SalesDocCount],[ChequesDocCount])

	CREATE NONCLUSTERED INDEX [IX_GoodsSale$IdSalesPoint$Date] 
	ON [dbo].[GoodsSale] ([IdSalesPoint],[Date])
	INCLUDE ([IdGoods],[SalesDocCount],[ChequesDocCount],[SalesSaledQuantity],[ChequesSaledQuantity])

UPDATE [dbo].[GoodsSale]
	SET 		
		 [SalesDocCount] = 0
		,[ChequesDocCount] = 0
		,[SalesSaledQuantity] = 0
		,[ChequesSaledQuantity] = 0
		,[SalesSupplierSum] = 0
		,[ChequesSupplierSum] = 0
		,[SalesSalesSum] = 0
		,[ChequesSalesSum] = 0
	FROM [dbo].[GoodsSale] gs
	INNER JOIN (SELECT 
					IdStore, 
					IdGoods, 
					DATE = MIN(DATE) 
				FROM #DATA
				GROUP BY 
					IdStore,
					IdGoods) a ON a.IdGoods = gs.IdGoods AND a.IdStore = gs.IdStore  	
	WHERE gs.Date >= a.Date and gs.[IdSalesPoint] = 1

use tempdb;
create table t1(a int not null,b int not null,c int not null);
go
create unique clustered index cix_a on t1(a,b);
create index ix_c on t1(c);
go
insert t1(a,b,c) select number,number,number from master..spt_values where type = 'p';
go

begin tran;
set statistics io,xml on;
--1 time
update t1 set a = 0, c = 0
option(
	recompile
	,querytraceon 8790 -- Force Wide Update Plan
);
--2 time
update t1 set a = 0, c = 0
option(
	recompile
	,querytraceon 8790 -- Force Wide Update Plan
);
set statistics io,xml off;
rollback tran;
go

drop table t1;

begin tran
select c from t1 with(holdlock);

update t1 set a = 0, c = 0
option(
	recompile
	,querytraceon 8790 -- Force Wide Update Plan
);

begin tran
select c from t1 with(holdlock);

update t1 set a = 0, c = 0
option(
	recompile
	,querytraceon 8790 -- Force Wide Update Plan
);

UPDATE [dbo].[GoodsSale]
	SET 		 
		 [SalesDocCount] = T.[SalesDocCount]
		,[ChequesDocCount] = T.[ChequesDocCount]
		,[SalesSaledQuantity] = T.[SalesSaledQuantity]
		,[ChequesSaledQuantity] = T.[ChequesSaledQuantity]
		,[SalesSupplierSum] = T.[SalesSupplierSum]
		,[ChequesSupplierSum] = T.[ChequesSupplierSum]
		,[SalesSalesSum] = T.[SalesSalesSum]
		,[ChequesSalesSum] = T.[ChequesSalesSum]
		,[IdSalesPoint] = T.IdSalesPoint			
	FROM #DATA c
	INNER JOIN [dbo].[GoodsSale] T ON T.IdGoods = c.IdGoods AND T.IdStore = c.IdStore AND T.Date = c.Date

... and gs.[IdSalesPoint] = 1

        UPDATE [dbo].[GoodsSale]
	SET 		
		 [SalesDocCount] = 0
		.............................	

Microsoft SQL Server 2008 R2 (RTM) - 10.50.1600.1 (X64)   Apr  2 2010 15:48:46   
Copyright (c) Microsoft Corporation  Developer Edition (64-bit) 
on Windows NT 6.1 <X64> (Build 7601: Service Pack 1)