request.stats.numberOfRequests.ko * 100 / request.stats.numberOfRequests.total).toFixed(0) + '%';
    else
        var koPercent = '-'

    return '<tr id="' + request.pathFormatted + '" data-parent=' + parent + '> \
        <td class="total col-1"> \
          <div class="expandable-container"> \
            <span id="' + request.pathFormatted + '" style="margin-left: ' + (level * 10) + 'px;" class="expand-button' + expandButtonStyle + '">&nbsp;</span> \
            <a href="' + url +'" class="withTooltip"