private void copyToListProd(ListProduct prod) {
prod.setEndprice(this.endprice);
prod.setPrice(this.price);
prod.setPercentage(
HibernateUtils.calculatePercentageFromPrices(
prod.getProduct().getPurchaseprice(), this.price));
}
private void copyFromListProd(ListProduct prod) {
this.price = prod.getPrice();
this.taxrate = (float) prod.getProduct().getTaxrate().getValue();
this.endprice = prod.getEndprice();
this.originalPercentage = prod.getPercentage();
}