Edit in JSFiddle

//begin main function
$(document).ready(function () {

    dataCommas();
    dataPercent();
    
});
//end main function


//begin function
function addCommas(nStr) {
    nStr += '';
    x = nStr.split('.');
    x1 = x[0];
    x2 = x.length > 1 ? '.' + x[1] : '';

        var rgx = /(\d+)(\d{3})/;
            while (rgx.test(x1)) {
                x1 = x1.replace(rgx, '$1' + ',' + '$2');
            }
        return x1 + x2;
}
//end function

//add commas to numbers
function dataCommas() {

        $('#commasDiv').html(
            '<p>Wards Reporting: ' + addCommas(1000) + ' of ' + addCommas(2000) +
            ' (' + (1000/2000 * 100.0).toFixed(2) + '%)</p>');
}
//end function

//create percents from numbers
function dataPercent() {

        $('#percentDiv').html(
            '<p>Total Votes: 1234 (' + (1234/3000 * 100.0).toFixed(2) +
                '%)</p>');
}
//end function

<div id="commasDiv"></div>
<br />
<div id="percentDiv"></div>