/// <summary>
/// Get correct price for currency and calculate with or without taxes applied.
/// </summary>
private decimal GetPrice(IList<ProductPrice> prices, IList<ProductTax> taxes)
{
var price = prices.FirstOrDefault(p => p.CurrencyCode == this.currencyCode);
if (price == null)
{
throw new ArgumentException(String.Format("No prices available for currency code {0}", this.currencyCode));
}
var priceCalculator = new PriceCalculator(this.pricesIncludeVat, this.inclusiveTaxCalculationType);
return priceCalculator.CalculatePrice(price.Value, taxes);
}