/// <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());
}
}
