Try setting footerData last arg to false. e.g.

// 4th arg value of false will disable the using of formatter
grid.jqGrid('footerData','set', {id: 'Total: ' + sum.toFixed(2), invdate: 'Sub Total: '+sum_running, total: 'Grand Total: '+sum_table}, false);

Previous reply was for footer row summary.
For grouping, you can have formatting in php code:e.g.

$data["params"]["userdata"] = array("note"=>"Grand Summary","total"=>"Total: $".$total);

Code: http://www.phpgrid.org/demo/demos/appearence/grouping.phps
Demo: http://www.phpgrid.org/demo/demos/appearence/grouping.php

hi
thank you sir

i have followed the Grouping Example.phpgriddemosappearencegrouping.php

how to apply the solution given by you

Hi sir

I have used this sample and got the grid also.

I wanted to format the total column to be a currency format .so i tried but got grouping total is not getting calculated because the comma separated value cannot be used to sum.How to do this?

Thank you

$col = array();
$col["title"] = "Sales Litre ";
$col["name"] = "SALELITER";
$col["editable"] = false;
$col["align"] = "right";
$col["formatter"] = "number";
$col["formatoptions"] = array("thousandsSeparator" => ",",
"decimalSeparator" => ".",
"decimalPlaces" => 2);
$col["sortable"] = false; // this column is not sortable
$col["search"] = false; // this column is not searchable
$col["summaryType"] = "sum"; // available grouping fx: sum, count, min, max, avg
$col["summaryTpl"] = '<b>Sub Total: {0} Ltr</b>'; // display html for summary row – work when "groupSummary" is set true. search below
$testt=$col["summaryTpl"];
$col["hidden"] = false;
$cols[] = $col;

Working demo:
Code: http://pastebin.com/zgRZ1hW2
Result: http://screencast.com/t/a2agWXrKiimZ

Thank you sir

for your passion 9494 when i use formatter i dont the the group summary value.

That is my issue.

Thank you

Hi,

I don't understand your query. Please explain with more details / code / screenshot.
Please refer the code and compare with your implementation.

// $grid["userDataOnFooter"] = true; // Fill footer row with userdata (with on_data_display event)

// to use footerdata without formatter, comment above and use this
$grid["loadComplete"] = 'function(){ var userData = jQuery("#list1").jqGrid("getGridParam","userData"); jQuery("#list1").jqGrid("footerData","set",userData,false); }';

Sir, I try to see your sample code from http://www.phpgrid.org/demo/demos/appearence/grouping.phps but it appear message that the page not found. Would you fix it?

Fixed appearEnce typo:

Visit this:
Code: http://www.phpgrid.org/demo/demos/appearance/grouping.phps
Demo: http://www.phpgrid.org/demo/demos/appearance/grouping.php