diff --git a/Retail/13 DM_TF_EXT_RETAIL_SALES.sql b/Retail/13 DM_TF_EXT_RETAIL_SALES.sql
index 6e824d0..1659949 100644
--- a/Retail/13 DM_TF_EXT_RETAIL_SALES.sql	
+++ b/Retail/13 DM_TF_EXT_RETAIL_SALES.sql	
@@ -218,7 +218,7 @@ WITH NIAD_DWD_TABLE AS (
     'ROC' AS zk_region,
     a.sales_unit,
     a.sales_value,
-    a.counting_unit
+    a.sales_unit * (b.counting_unit/ coalesce(b.unit,1)) as counting_unit
   from
     dwd.dwd_gnd_ext_retail_nataional_niad a
       left join dwd.dwd_gnd_ext_retail_pack_property b