Adding up a column with jQuery - improvement

[Hangfire]

Hi guys
I'm making a golf handicap calculator, you have a couple of columns, for each hole - par, score, difference and adjusted difference.

I need to total up each column, and this is my code to do it.
It works but feels inefficient and clunky.
Any thoughts on improving it? In particular can you sum up a bunch of inputboxes with the same class instead of using the each loop?

function calcTotals()
{
	var tpar = 0;
	var tscore = 0;
	$("#scorecard .par").each(function(){
		if(isNumber($(this).val()))
		{
			tpar += parseInt($(this).val());
		}
		if(isNumber($(this).parent("td").next("td").find("input").val()))
		{
			tscore += parseInt($(this).parent("td").next("td").find("input").val());
		}
	});
	$("#totPar").html(parseInt(tpar));
	$("#totScore").html(parseInt(tscore));
}

function isNumber(n) { 
  return !isNaN(parseFloat(n)) && isFinite(n); 
}

cheers and beers