如何整合這兩個簡單的JavaScript代碼？

Question

我有一個JavaScript代碼已經設置爲總共。我只需要將總數的4％添加到實際總數中。這是我

/* EXISTING WORKING TOTAL CODE */ 
$(function() { 
$('.DoPricing').on("keyup",function() { 
    var total = 0; 
    $('.DoPricing').each(function() { 
     total += parseFloat($(this).val()) || 0; 
    }); 
    $('#TotalPrice').html('$' + total); 
}); 
}); 

/* NEW PERCENTAGE CODE BELOW THAT NEEDS INTEGRATED */ 
/* The code below is suppose to add 4% to total once integrated*/ 

var total = round_decimals(order_total, 2); 
frm.TOTAL.value = total + ((4/100)*total); 

Answer 1

var total = 200; 
total = total*1.04; 
console.log(total); // 208 

所以你的情況

$(function() { 
$('.DoPricing').on("keyup",function() { 
    var total = 0; 
    $('.DoPricing').each(function() { 
     total += parseFloat($(this).val()) || 0; 
    }); 
    $('#TotalPrice').html('$' + (total*1.04).toFixed(2)); 
}); 
}); 

會爲200總產量208.00。