Por favor, tente os seguintes códigos. Você tem que usar a consulta PIVOT.
create table TableName (Series varchar(20),col2 varchar(10), price decimal(8,2))
insert into TableName values ('105','C50',30)
insert into TableName values ('105','C50',10)
insert into TableName values ('105','C53',20)
insert into TableName values ('105','C53',30)
SELECT Series,
[C50],
[C53]
FROM (SELECT Series,
col2,
price
FROM TableName) AS SourceTable
PIVOT ( SUM(price) FOR col2 IN ([C50],
[C53])
) AS PivotTable;