jquery .change() not working when my cart input fields are update -

i have small script should update cart count on page if product added or subtracted. not seem working when add cart item , quantity filed changed if refresh page:

(function($){     jquery(".hikashop_cart_module input.hikashop_product_quantity_field").change(function(){         var sum = 0;         $(".hikashop_cart_module input.hikashop_product_quantity_field").each(function(){             sum += +$(this).val();         }).change();         $("#total").text(sum);       }); })(jquery); 

you have errors in code. compare one:

(function($){     // if load elements dynamically need use delegated events     $(document).on('change', '.hikashop_cart_module input.hikashop_product_quantity_field', function(){         var sum = 0;         $(this).each(function(){             sum += +$(this).val();         });         $("#total").text(sum);     }); })(jquery);