JSFiddle - React, Tailwind, and code Playground

HTML

<script type="text/javascript">
  $(document).ready(function() {
    var postURL = "addmore.php";
    var i = 1;

    $('#add').click(function() {
      i++;
      $('#dynamic_field').append('<tr id="row' + i + '" class="dynamic-added"><td width="50%"><input type="text" name="name[]" class="form-control name_list" required="" /></td>  <td width="12.5%"><input type="text" name="quantity[]" class="form-control name_list" required="" /></td>  <td width="12.5%"><input type="text" name="measure[]" class="form-control name_list" required="" /></td>  <td width="12.5%"><input type="number" name="discount[]" class="form-control name_list" required="" /></td>  <td width="12.5%"><input type="number" disabled name="total[]" class="form-control name_list" required="" /></td>  <td><button type="button" name="remove" id="' + i + '" class="btn btn-danger btn_remove">X</button></td></tr>');
    });

		function computeSum() {
    	var totalPrice = 0;
    	$('input[name="total[]"]').each(function(key, total) {
      	totalPrice += parseInt(total.value, 10);
      });
      console.log('totalPrice')
      $('#totalWithoutVat').text(totalPrice)
    }

    $(document).on('click', '.btn_remove', function() {
      var button_id = $(this).attr("id");
      $('#row' + button_id + '').remove();
    });
		
    $(document).on('keyup', 'input[name="quantity[]"]', function(e) {
    	var quantity = $(e.target);
      if (quantity.val()) {
        var tr = quantity.closest('tr');
        var measure = tr.find('input[name="measure[]"]');
        var total = tr.find('input[name="total[]"]');
        total.val(measure.val() * quantity.val());
        computeSum();
      }
    });
    
    $(document).on('keyup', 'input[name="measure[]"]', function(e) {
    	var measure = $(e.target);
      if (measure.val()) {
      	console.log(measure.val());
        var tr = measure.closest('tr');
        var quantity = tr.find('input[name="quantity[]"]');
        var total = tr.find('input[name="total[]"]');
 ...