I find it on another way like this but Gila's post is the best for me!?

Select MyColumn FROM

(

SELECT CAST(CAST(0.10*100 AS numeric(10,2)) AS varchar(5)) + '%' as MyColumn

Union

SELECT CAST(CAST(0.011*100 AS numeric(10,2)) AS varchar(5)) + '%' as MyColumn

Union

SELECT CAST(CAST(0.02*100 AS numeric(10,2)) AS varchar(5)) + '%' as MyColumn

Union

SELECT CAST(CAST(0.12*100 AS numeric(10,2)) AS varchar(5)) + '%' as MyColumn

) MyTable

Order by CAST(Replace(MyColumn,'%','') as DECIMAL) asc