Sales_amount_without_tax__c
    20190327前 
Case( Currency__c,"RMB", IF(Order_date__c >= Datevalue("2018-05-01"),Sales_Amount__c /1.16,Sales_Amount__c /1.17) 
,"USD",IF(Order_date__c >= Datevalue($Label.Tax_Foreign_Date),Sales_Amount__c * 6.8, 
IF(Order_date__c >= Datevalue("2018-05-01"),Sales_Amount__c * 6.3, 
IF(Order_date__c >= Datevalue("2016-12-01"),Sales_Amount__c * 6.8, 
IF(Order_date__c >= Datevalue("2016-07-01"),Sales_Amount__c * 6.5, 
IF(Order_date__c >= Datevalue("2012-10-01"), 
Sales_Amount__c * 6.3, Sales_Amount__c * 6.6 
) 
) 
) 
) 
) 
,Sales_Amount__c * 1 
)
    false
    Case(Currency__c,"RMB", 
IF( 
Order_date__c < Datevalue($Label.Tax_Date), 
Sales_Amount__c/1.17, 
if( 
And(Order_date__c >= Datevalue( $Label.Tax_Date ),Order_date__c < Datevalue($Label.Tax_Date_13 )), 
Sales_Amount__c/1.16, 
Sales_Amount__c/1.13 
) 
) 
,"USD", Sales_Amount__c * Usd_Tax_Formula__c 
,0 
)
    BlankAsZero
    
    18
    false
    2
    false
    Number
    false