Sending multiple querystring from a datagridview on a Hyperlinkfield

Hello everyone

Please help me with the following

This is my code

Basically I want to send InstituteID & Percent as C_Percent to the next page.

<asp:GridView ID="dgvDeliveryReport" runat="server" AutoGenerateColumns="False"
Width="100%" Height="27px" Font-Names="Tahoma" Font-Size="Smaller"
onselectedindexchanged="dgvDeliveryReport_SelectedIndexChanged">
<RowStyle BorderColor="#CCFF99" />
<Columns>
<asp:CommandField ShowSelectButton="True" HeaderText="View" SelectText="View" >
<ItemStyle Width="35px" />
</asp:CommandField>
<asp:BoundField DataField="InstituteID" HeaderText="REF No" >
<HeaderStyle ForeColor="White" />
<ItemStyle HorizontalAlign="Center" />
</asp:BoundField>
<asp:BoundField DataField="Institutename" HeaderText="NAME" >
<HeaderStyle ForeColor="White" />
<ItemStyle HorizontalAlign="Center" />
</asp:BoundField>
<asp:BoundField DataField="O_QTY" HeaderText="ORDER QTY" >
<HeaderStyle ForeColor="White" />
<ItemStyle HorizontalAlign="Center" />
</asp:BoundField>
<asp:BoundField DataField="TotalPrice" HeaderText="ORDER PRICE">
<HeaderStyle ForeColor="White" />
</asp:BoundField>
<asp:BoundField DataField="D_QTY" HeaderText="DELIVERED QTY" >
<HeaderStyle ForeColor="White" />
<ItemStyle HorizontalAlign="Center" />
</asp:BoundField>
<asp:BoundField DataField="D_Percent" HeaderText="DELIVERY %" >
<HeaderStyle ForeColor="White" />
<ItemStyle HorizontalAlign="Center" />
</asp:BoundField>
<asp:BoundField DataField="C_Percent" HeaderText="CONFIRMED %" >
<HeaderStyle ForeColor="White" />
<ItemStyle HorizontalAlign="Center" />
</asp:BoundField>
<asp:HyperLinkField DataNavigateUrlFields="InstituteID"
DataNavigateUrlFormatString="PrintConsolidations.aspx?InstituteID={0}&Percent="
DataTextField="InstituteID" HeaderText="Print"
NavigateUrl="~/PrintConsolidations.aspx" DataTextFormatString="Print"
Text="Print" />
</Columns>
<HeaderStyle BackColor="#996633" />
<AlternatingRowStyle BackColor="#CCCCCC" BorderColor="#999999"
BorderStyle="None" />
</asp:GridView>

Hope U understand what I mean
Thanx in advance