public Summary(TaxAmount taxAmount, DiscountAmount discountTotalAmount, ChargeAmount chargeAmount, double amountBeforeDiscount)
{
this.SubTotal = amountBeforeDiscount;
this.DiscountTotalAmount = discountTotalAmount;
this.ChargeAmount = chargeAmount;
this.TaxAmount = taxAmount;
this.NetAmount = SubTotal - discountTotalAmount + ChargeAmount + TaxAmount;
}
internal void ChangeDiscountTotal(double subTotal, DiscountAmount discountTotal)
{
if (subTotal == 0d) return;
this.SharedDiscountAmount = (AmountAfterDiscount / subTotal) * discountTotal;
Calculate();
}