{if $column.orderBy && is_string($item->orderBy) && preg_match("/ DESC$/", $item->orderBy)}
    {math equation = "lastItemNumber - iteration" lastItemNumber = $item->paginator.lastItemNumber|default:1 iteration = $smarty.foreach.row.index}
{else}
    {math equation = "firstItemNumber + iteration" firstItemNumber = $item->paginator.firstItemNumber|default:1 iteration = $smarty.foreach.row.index}
{/if}