-1*(Nullvalue(sales_discount__c,0) + Nullvalue(Contract_target__c,0) + Nullvalue(New_QIS_free__c,0) + Nullvalue(New_QIS_not_QIS_issue__c,0) + Nullvalue(Contract_free__c,0) + Nullvalue(Contract_not_QIS_issue__c,0) + Nullvalue(Loaner_repair__c,0) + Nullvalue(maintenance_pj__c,0) + Nullvalue(CCD_cut__c,0) + Nullvalue(Special_offer__c,0) + Nullvalue(long_term_insurance__c,0) + Nullvalue(long_term_insurance_MD__c,0) + Nullvalue(Set_discount__c,0) + Nullvalue(Servince_contract_discount_amount__c,0) + Nullvalue(Delivery_compensation__c,0) + Nullvalue(Other_discount__c,0)),
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