Format number to display 2 decimal places in ASP.Net GridView

I have this Toatal Rev column in gridview which has 7 - 79 decimal value e.g 62416.666666667. I would love to approximate the values to 2 decimal value e.g 62416.67. Please this is different from the former example i posted because this example does not uses jquery, it load directly to the gridview by binding the data

My Codeplease help me sir

<asp:GridView ID="avDetails" runat="server" AutoGenerateColumns="False"
    Font-Names="Arial Narrow"
    Font-Size="13px" DataKeyNames="pid" OnSorting="OnSorting" AllowSorting="True" OnRowDataBound="OnRowDataBound"
    Width="100%" Style="margin-bottom: 0px"
    CssClass="grid" CellPadding="2" ForeColor="#333333" GridLines="None">
    <AlternatingRowStyle BackColor="White" />
    <Columns>
        <asp:BoundField DataField="no" HeaderText="BASE NO" SortExpression="no" />
        <asp:TemplateField
            HeaderText="PROD CODE"
            SortExpression="pid">
            <ItemTemplate>
                <%# Eval("pid")%>
            </ItemTemplate>
        </asp:TemplateField>
        <asp:BoundField DataField="posino" HeaderText="POSI NO" SortExpression="posino" />
        <asp:BoundField DataField="description" HeaderText="DESCRIPTION" SortExpression="description" />
        <asp:BoundField DataField="colour" HeaderText="COLOUR" SortExpression="colour" />
        <asp:BoundField DataField="deliverydate" HeaderText="RECEIVED" SortExpression="deliverydate" />
        <asp:BoundField DataField="supplier" HeaderText="SUPPLIER" SortExpression="supplier" />
        <asp:BoundField DataField="totalrev" HeaderText="TOTAL REV" SortExpression="totalrev" />
        <asp:BoundField DataField="screen" HeaderText="SCR/ANG" SortExpression="screen" />
        <asp:BoundField DataField="depth" HeaderText="DEPTH" SortExpression="depth" />
        <asp:BoundField DataField="circumference" HeaderText="CIRC" SortExpression="circumference" />
        <asp:BoundField DataField="" HeaderText="STATUS" />
        <asp:TemplateField HeaderText="USE">
            <ItemTemplate>
                <asp:CheckBox ID="chkSelect" runat="server" OnCheckedChanged="OnChckedChanged" AutoPostBack="True" />
            </ItemTemplate>
        </asp:TemplateField>
    </Columns>
    <EditRowStyle BackColor="#2461BF" />
    <FooterStyle BackColor="#507CD1" Font-Bold="True" ForeColor="White" />
    <HeaderStyle BackColor="#507CD1" Font-Bold="True" ForeColor="White" />
    <PagerStyle BackColor="#2461BF" ForeColor="White" HorizontalAlign="Center" />
    <RowStyle BackColor="#EFF3FB" />
    <SelectedRowStyle BackColor="#D1DDF1" Font-Bold="True" ForeColor="#333333" />
    <SortedAscendingCellStyle BackColor="#F5F7FB" />
    <SortedAscendingHeaderStyle BackColor="#6D95E1" />
    <SortedDescendingCellStyle BackColor="#E9EBEF" />
    <SortedDescendingHeaderStyle BackColor="#4870BE" />
</asp:GridView>