diff --git a/src/worker/sql.rs b/src/worker/sql.rs
index 1165c83..5f60daa 100644
--- a/src/worker/sql.rs
+++ b/src/worker/sql.rs
@@ -73,24 +73,41 @@ JOIN falukant_data.branch b ON b.region_id = c.region_id AND b.falukant_user_id
 WHERE current_time BETWEEN '08:00:00' AND '17:00:00';
 "#;
 
-/// Bester Produktstart: Mit **mindestens einem** `falukant_data.vehicle` pro User — bester `worth_percent`
-/// je Produkt über alle Filialregionen; **ohne** Fahrzeug nur noch **lokaler** Markt (Region der Direktor-Filiale),
-/// sonst wäre der beste Fern-Preis nicht erreichbar.
+/// Bester Produktstart: **Gewinn pro Minute** (wie UI „Gewinn/Minute“) ≈ `(Erlös/Stück − Stückkosten) / Produktionszeit`.
+/// Stückkosten = gleiche Formel wie `Director::piece_production_cost` (Basis 6 + Kategorie, Headroom-Rabatt).
+/// Marktpreis: mit Fahrzeug `MAX(worth_percent)` über Filialregionen, sonst nur Direktor-Region. **Ohne** Steuer im Ranking.
 pub const QUERY_GET_BEST_PRODUCTION: &str = r#"
 SELECT fdu.id falukant_user_id, CAST(fdu.money AS text) AS money, fdu.certificate, ftp.id product_id, ftp.label_tr,
 COALESCE(ftp.category, 1)::int AS product_category, fdb.region_id,
 (SELECT SUM(quantity) FROM falukant_data.stock fds WHERE fds.branch_id = fdb.id) AS stock_size,
 COALESCE((SELECT SUM(COALESCE(fdi.quantity, 0)) FROM falukant_data.stock fds JOIN falukant_data.inventory fdi ON fdi.stock_id = fds.id WHERE fds.branch_id = fdb.id), 0) AS used_in_stock,
-( (ftp.sell_cost * (
-      CASE
-        WHEN EXISTS (
-            SELECT 1 FROM falukant_data.vehicle v
-            WHERE v.falukant_user_id = fdu.id
+(
+    (
+        ftp.sell_cost * (
+            CASE
+                WHEN EXISTS (
+                    SELECT 1 FROM falukant_data.vehicle v
+                    WHERE v.falukant_user_id = fdu.id
+                )
+                THEN bw.max_worth_pct
+                ELSE COALESCE(fdtpw_local.worth_percent::float8, 0.0)
+            END / 100.0
         )
-        THEN bw.max_worth_pct
-        ELSE COALESCE(fdtpw_local.worth_percent::float8, 0.0)
-      END / 100.0
-    )) / NULLIF(ftp.production_time::float8, 0.0) ) AS worth,
+        - (
+            (6.0 + (GREATEST(COALESCE(ftp.category, 1), 1))::float8)
+            * (
+                1.0 - LEAST(
+                    GREATEST(
+                        (GREATEST(COALESCE(fdu.certificate, 1), 1))::float8
+                        - (GREATEST(COALESCE(ftp.category, 1), 1))::float8,
+                        0.0
+                    ) * 0.035,
+                    0.14
+                )
+            )
+        )
+    ) / NULLIF(ftp.production_time::float8, 0.0)
+) AS worth,
 fdb.id AS branch_id, (SELECT COUNT(id) FROM falukant_data.production WHERE branch_id = fdb.id) AS running_productions,
 COALESCE((SELECT SUM(COALESCE(fdp.quantity, 0)) quantity FROM falukant_data.production fdp WHERE fdp.branch_id = fdb.id), 0) AS running_productions_quantity
 FROM falukant_data.director fdd