diff --git a/route_sql/scale_vupd.sql b/route_sql/scale_vupd.sql
index 2a4e607..61b3986 100644
--- a/route_sql/scale_vupd.sql
+++ b/route_sql/scale_vupd.sql
@@ -246,7 +246,7 @@ FROM
         WHEN (SELECT coalesce(sum(value_loc),0) FROM volume) = 0   -- Get a per-unit pincr value
             THEN (SELECT pincr::numeric FROM target) / (SELECT nullif(sum(units),0) FROM volume)
         ELSE  -- Find percent change for existing value_loc
-            (SELECT pincr::numeric FROM target) / (SELECT nullif(sum(value_loc * r_rate),0) FROM volume)
+            (SELECT pincr::numeric FROM target) / (SELECT nullif(sum(value_loc),0) FROM volume) - 1
         END factor
 )
 -- select * from pscale