We tried for two enum attribute values multiplication but this code is not working for us.

Please review the code and suggest the right code.

dojo.provide("com.example.rpnrate");
dojo.require("com.ibm.team.workitem.api.common.WorkItemAttributes");
 
 (function() {
    dojo.declare("com.example.rpnrate", null, {
 
    getLabel: function(attribute, workItem, configuration) {
 
        try {
            var Detection = parseString(workItem.getLabel("detection"));
            var Probability = parseString(workItem.getLabel("Probability_Occurrence"));
 
            var detect; 
            detect = Detection * Probability
 
            return rpn.toString();
        }
        catch(err) {
            var txt; 
            txt="There was an error on this page.\n\n";
            txt+="Error description: " + err.message + "\n\n";
            txt+="Click OK to continue.\n\n";
            alert(txt); 
        }
 
    }
 
    });
})();

Thanks !!