How Standard code calculated Netamount for both SalesOrder and Purchase Order in ax 2012

GoTO >>Class PriceDisc

Goto >>Method>>

client server static AmountCur  price2Amount(PriceCur         price,

                                             PriceUnit        priceUnit,

                                             DiscAmount       discAmount,

                                             Qty              qtyNow,

                                             Qty              qty,

                                             MarkupAmount     markup,

                                             DiscPct          discPercent,

                                             CurrencyCode     currencyCode,

                                             Amount           amount,

                                             boolean          forceAmountCalculation = false)

{

    Amount returnAmount;

    // <GEEPL>

    #ISOCountryRegionCodes

    // </GEEPL>

    ;

    if (!price && !discAmount && !discPercent && !markup && !forceAmountCalculation)

    {

        if (qtyNow == qty)

            return amount;

        else

            price = PriceDisc::amount2Price(amount,

                                            discPercent,

                                            markup,

                                            qty,

                                            discAmount,

                                            priceUnit,

                                            currencyCode,

                                            price);

    }

    if (price  || discAmount || discPercent || markup || forceAmountCalculation)

    {

        if (!priceUnit)

            priceUnit = 1;

        // <GEEPL>

        if (SysCountryRegionCode::isLegalEntityInCountryRegion([#isoPL]) &&

            SalesParameters::find().LineDiscCalculation_PL == PlLineDiscCalcType::PcsPrice &&

            (discAmount || markup || discPercent))

        {

            returnAmount = (qtyNow / priceUnit) * Currency::amount((price - discAmount + markup) * (100 - discPercent) / 100, currencyCode);

        }

        else

        {

        // </GEEPL>

            returnAmount = (qtyNow * ((price - discAmount) / priceUnit) + (qtyNow >= 0 ? markup : -markup) ) * (100 - discPercent) / 100;

        // <GEEPL>

        }

        // </GEEPL>

        returnAmount = Currency::amount(returnAmount, currencyCode);

    }

    else

    {

        returnAmount = amount;

    }

    return returnAmount;

}