ceshi__c false ( 5*FLOOR((No_Need_Date__c-DATE(1996,01,01))/7) + MIN(5, MOD(No_Need_Date__c-DATE(1996,01,01), 7)) ) - ( 5*FLOOR((CreateDate__c-DATE(1996,01,01))/7) + MIN(5, MOD(CreateDate__c-DATE(1996,01,01), 7)) ) BlankAsZero Test 18 false 2 false false Number false