CASE WHEN {custbody_application.custrecord_operations_pcnt_1} > {custbody_application.custrecord_operations_pcnt_2} 
AND {custbody_application.custrecord_operations_pcnt_1} > {custbody_application.custrecord_operations_pcnt_3} 
AND {custbody_application.custrecord_operations_pcnt_1} > {custbody_application.custrecord_operations_pcnt_4} 
AND {custbody_application.custrecord_operations_pcnt_1} > {custbody_application.custrecord_operations_pcnt_5} 
THEN {custbody_application.custrecord_operations_1.id}

WHEN {custbody_application.custrecord_operations_pcnt_2} > {custbody_application.custrecord_operations_pcnt_3} 
AND {custbody_application.custrecord_operations_pcnt_2} > {custbody_application.custrecord_operations_pcnt_4} 
AND {custbody_application.custrecord_operations_pcnt_2} > {custbody_application.custrecord_operations_pcnt_5} 
THEN {custbody_application.custrecord_operations_2.id} 

WHEN {custbody_application.custrecord_operations_pcnt_3} > {custbody_application.custrecord_operations_pcnt_4} 
AND {custbody_application.custrecord_operations_pcnt_3} > {custbody_application.custrecord_operations_pcnt_5} 
THEN {custbody_application.custrecord_operations_3.id} 

WHEN {custbody_application.custrecord_operations_pcnt_4} > {custbody_application.custrecord_operations_pcnt_5} 
THEN {custbody_application.custrecord_operations_4.id} 

ELSE {custbody_application.custrecord_operations_5.id} END