Maybe there is a better way, but here is one way:
declare @Num numeric(8,7)
set @Num = 0.0000001
SET @Num = CASE WHEN CAST(@Num AS NUMERIC(3,2)) = @Num THEN @Num ELSE CAST(@Num AS NUMERIC(3,2)) + 0.01 END
SELECT @Num
Adi
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To know how to ask questions and increase the chances of getting asnwers:
http://www.sqlservercentral.com/articles/Best+Practices/61537/
For better answers on performance questions, click on the following...
http://www.sqlservercentral.com/articles/SQLServerCentral/66909/