@Override
   public BigDecimal calculateTotalCostWithTax(ShoppingBakets<ConcreteItem> itemList){
	   BigDecimal totalcostWithTax = new BigDecimal(0.00);
	   for(ConcreteItem item:itemList){
		   totalcostWithTax = item.getPrice().add(calculateSaleTax(item)).add(totalcostWithTax);
	   }
	   return totalcostWithTax;
   }