/home/dvjjulio/test.istyle.mx/resources/views/Catalogos/sectionVenta.blade.php
<div class="row">
  <div class="form-group col-md-2">
      <input class="form-control" type="number" id="cantidad{{ $count }}" data-count="{{ $count }}" name="cantidad{{ $count }}" onchange="Venta.total(this);" placeholder="1"/>
  </div>
  <div class="form-group col-md-6">
      <select id="producto{{ $count }}" data-count="{{ $count }}" name="producto{{ $count }}" class="form-control" onchange="Venta.total(this);">
        <option value="">Selecciona</option>
        @if(isset($productos))
          @foreach($productos as $value)
            <option value="{{ $value->id }}" data-costo="{{ $value->costo }}">{{ $value->descripcion }}</option>
          @endforeach
        @endif
      </select>
  </div>
  <div class="form-group col-md-2">
      <input class="form-control" type="number" id="total{{ $count }}" name="total{{ $count }}" placeholder="" disabled/>
  </div>
  <div class="form-group col-md-2">
      <button class="btn btn-success" onclick="Venta.addSection(this)">+</button>
  </div>
</div>