[Белый шум]

$(window).load(function() {
        $('input[name="k-less"]').change(function () {
            summ = $(this).val();
            perhour = parseInt($('.kperhour').text(), 10);
            kurs = 65;
            console.log('summ '+summ+' perhour '+perhour+' kurs '+kurs+'')
            summ = summ*perhour*kurs;
            $('.k-cost').text(summ);
            console.log('k-less');
        }).trigger("change");
    });