// slick count slides

var status       = $('.paging-info'),
    slickElement = $('.promo-slider');

slickElement.on('init reInit afterChange', function (event, slick, currentSlide, nextSlide) {

    var i = (currentSlide ? currentSlide : 0) + 1;
    status.text(i + '/' + slick.slideCount);

});

slickElement.slick();