/// <summary>
/// le taux de marque permet de calculer la marge directement depuis le prix de vente HT. Pvht * Tmq = la marge
/// </summary>
public static decimal GetSellingAmount(VATEnum iResultTypePrice, decimal iNetMarkRatePercentage, decimal iBuyingAmount, decimal iShippingAmountTTC, decimal iVariableFeePercentage, decimal iFixedFeeAmount, decimal iVATRate, ConditionEnum iCondition)
{
//TVA sur CA
if (iCondition == ConditionEnum.UNUSED)
{
decimal sellingAmountHT = (iBuyingAmount + (iShippingAmountTTC * iVariableFeePercentage / 100) + iFixedFeeAmount) / (1 - iNetMarkRatePercentage / 100 - (1 + iVATRate / 100) * iVariableFeePercentage / 100);
//retourne le TTC
if (iResultTypePrice == VATEnum.TTC)
{
return((sellingAmountHT * (1 + (iVATRate / 100))).Round2());
}
//Retourne le HT
else if (iResultTypePrice == VATEnum.HT)
{
return(sellingAmountHT.Round2());
}
else
{
throw new NotSupportedException(iResultTypePrice.ToStringWithEnumName());
}
//Prht = Paht + Fv + Ff avec Prht = pvht(1-tmq)
//Pvht = (Paht + Lvttc*Tfv +FF)/(1 - tmq - (1+TVA)(Tfv)) avec Pvttc = pvht *(1+TVA)
}
//Tva sur marge
else if (iCondition == ConditionEnum.USED)
{
decimal sellingPriceHT = (iBuyingAmount + (iShippingAmountTTC - iBuyingAmount * (iVATRate / 100)) * (iVariableFeePercentage / 100) + iFixedFeeAmount) / (1 - iNetMarkRatePercentage / 100 - (1 + iVATRate / 100) * iVariableFeePercentage / 100);
//retourne le TTC
if (iResultTypePrice == VATEnum.TTC)
{
return((sellingPriceHT + (sellingPriceHT - iBuyingAmount) * (iVATRate / 100)).Round2());
}
//Retourne le HT
else if (iResultTypePrice == VATEnum.HT)
{
return((sellingPriceHT).Round2());
}
else
{
throw new NotSupportedException(iResultTypePrice.ToStringWithEnumName());
}
//Prht = Paht + Fv + Ff avec Pvttc = Pvht + (pvht - paht)*TVA avec Prht = pvht(1-tmq)
//pvht = Paht + (Lvttc - Paht*TVA)Tfv + Ff)/(1-Tmq - (1+tva)Tfv)
}
else
{
throw new NotSupportedException(iCondition.ToStringWithEnumName());
}
}
/// <summary>
/// Retourne une mise en forme du prix avec la devise et le taux de TVA;
/// </summary>
public static string ToString(this decimal iPrice, string iCurrency, VATEnum iVATEnum)
{
if (iCurrency == null)
{
throw new ArgumentNullException("Currency");
}
string taxValue = string.Empty;
if (iVATEnum == VATEnum.TTC)
{
taxValue = "TTC";
}
else if (iVATEnum == VATEnum.HT)
{
taxValue = "HT";
}
else if (iVATEnum == VATEnum.EMPTY)
{
taxValue = "";
}
else
{
throw new NotSupportedException();
}
string amountString = "0";
if (iPrice != 0)
{
var nfi = (NumberFormatInfo)CultureInfo.InvariantCulture.NumberFormat.Clone();
nfi.NumberGroupSeparator = " ";
nfi.NumberDecimalSeparator = ",";
amountString = iPrice.ToString("#,#.00", nfi);
//ajout le 0 avant la virgule si besoin
if (amountString[0] == ',')
{
amountString = "0" + amountString;
}
}
return("{0} {1} {2}".FormatString(amountString, iCurrency, taxValue).Trim());
}
