How do I get a grand total in my template?

Hi,

how to calculate grand total for CF_AMT_CHILD. I have tried <?sum(CF_AMT_CHILD)?> it's printing only first value 1992899.

please give me any solution.

<?xml version="1.0" encoding="WINDOWS-1252"?>

<!-- Generated by Oracle Reports version 10.1.2.0.2 -->

<XXPA_PROPOSAL_PRJ>

  <LIST_G_ELEMENT_ID>

    <G_ELEMENT_ID>

      <ELEMENT_ID>981061</ELEMENT_ID>

      <PARENT_ORG>O&amp;M Circle Rajgarh</PARENT_ORG>

      <TYPE>XXHR_CIRCLE</TYPE>

      <PAR_ORG_ID>4026</PAR_ORG_ID>

      <PARENT_PRJ_SEG>135669</PARENT_PRJ_SEG>

      <PAR_PRJ_ID>119534</PAR_PRJ_ID>

      <PARENT_NAME>Workplan Rajgarh GEN 14-15</PARENT_NAME>

      <PARENT_LONG_NAME>Annual Work plan Rajgarh GEN 14-15.</PARENT_LONG_NAME>