public SaleInvoiceLineItem GetLineItemTotal(SaleInvoiceLineItem siLi)
        {
            siLi.DiscUnitPrice  = siLi.LineitemPrice - (siLi.LineitemPrice * siLi.DiscPct / 100);
            siLi.ExtendedAmount = Math.Round(siLi.Quantity * (siLi.DiscUnitPrice), 2);
            siLi.Amount         = Math.Round((decimal)(siLi.LineitemPrice * Convert.ToDecimal(siLi.Quantity)), 2);

            return(siLi);
        }
 public SaleInvoiceLineItem GetLineItemTotal(SaleInvoiceLineItem siLi)
 {
     siLi.Amount = Math.Round((decimal)(siLi.LineitemPrice * Convert.ToDecimal(siLi.Quantity)), 2);
     return(siLi);
 }