Expression on row

[cbaqir]

How can I get the expression to show on the second row with the resource of nbush instead of the core_builder?

sum(aggr(max(FACT_ALM_DEFECT_RESOURCE.START_DATE)-
min(FACT_ALM_DEFECT_RESOURCE.START_DATE),DEFECT_ID,[FACT_ALM_DEFECT_RESOURCE.RESOURCE TYPE]))
/count(DISTINCT DEFECT_ID)