<asp:GridView ID="GridView3" DataSourceID="test" runat="server" AutoGenerateColumns="False">
       <Columns>
               <asp:BoundField DataField="deuda"
              HeaderText="deuda" ReadOnly="True"
              SortExpression="deuda" DataFormatString="{0:#,##0}" HtmlEncode="False" />
       </Columns>
</asp:GridView>

set @lvl = 0;
set @saldo = 0;
WHILE @saldo < (SELECT (80 * (sum(CASE WHEN a1.c11 <> 0 AND DATEADD(DAY, CONVERT(FLOAT(10), KDUD.C16), A1.C7) < DATEADD(day, - 90, GETDATE())
 THEN ((a1.C17 / a1.C11) * a1.C20) END)) / 100)
 FROM kdue a1
 LEFT JOIN KDMM ON KDMM.C1 = 'U' AND A1.C3 = KDMM.C2 AND A1.C4 = KDMM.C3 AND A1.C5 = KDMM.C4
 LEFT JOIN KDMS ON A1.C1 = KDMS.C1
 LEFT JOIN KDUD ON A1.C2 = KDUD.C2
 LEFT JOIN KDUV ON A1.C18 = KDUV.C2
  WHERE a1.c1 = '02-01')
  BEGIN SET
   @saldo = @saldo +
   (SELECT
   sum(CASE WHEN a1.c11 <> 0 AND DATEADD(DAY, CONVERT(FLOAT(10), KDUD.C16), A1.C7) < DATEADD(day, - 90, GETDATE()) THEN ((a1.C17 / a1.C11) * a1.C20) END) AS x
    FROM KDUE A1
    LEFT JOIN KDMM ON KDMM.C1 = 'U' AND A1.C3 = KDMM.C2 AND A1.C4 = KDMM.C3 AND A1.C5 = KDMM.C4
     LEFT JOIN KDMS ON A1.C1 = KDMS.C1
      LEFT JOIN KDUD ON A1.C2 = KDUD.C2
      LEFT JOIN KDUV ON A1.C18 = KDUV.C2
       WHERE a1.c1 = '02-01' GROUP BY kdud.c3 ORDER BY x DESC OFFSET @lvl ROWS FETCH NEXT 1 ROWS ONLY);
        SET @lvl = @lvl + 1 END
        select replace(cliente,' ','')as cliente,replace(convert(varchar,round(p,0)),'.000000000','')as deuda from
(
SELECT TOP (@lvl) kdud.c3 as cliente,
        (sum(CASE WHEN a1.c11 <> 0 THEN ((a1.C17 / a1.C11) * a1.C20) END)) AS p
        FROM KDUE A1
        LEFT JOIN KDMM ON KDMM.C1 = 'U' AND A1.C3 = KDMM.C2 AND A1.C4 = KDMM.C3 AND A1.C5 = KDMM.C4
        LEFT JOIN KDMS ON A1.C1 = KDMS.C1 LEFT JOIN KDUD ON A1.C2 = KDUD.C2
        LEFT JOIN KDUV ON A1.C18 = KDUV.C2
        WHERE a1.c1 = '02-01' AND DATEADD(DAY, CONVERT(FLOAT(10), KDUD.C16), A1.C7) < DATEADD(day, - 90, GETDATE())
        GROUP BY kdud.c3 ORDER BY p DESC)as x

<asp:SqlDataSource ID="test" runat="server" ConnectionString="<%$ ConnectionStrings:ServIndustrialConnectionString2 %>" SelectCommand="my query">