diff --git a/backend/app/routers/collections.py b/backend/app/routers/collections.py
index 2307e4e..704ec2b 100644
--- a/backend/app/routers/collections.py
+++ b/backend/app/routers/collections.py
@@ -399,17 +399,13 @@ def get_stats(
         "bySpecialMark": [{"mark": m, "count": n} for m, n in by_special_mark],
         "byNumberCategory": [{"numberCategory": n, "count": c} for n, c in by_number_category],
         # 盈亏统计
-        profit_count = db.query(func.count(Collection.f99_90_id)).filter(
-            sold_filter, Collection.f05_42_goal_price > Collection.f05_40_cost_price
-        ).scalar() or 0
-        
-        loss_count = db.query(func.count(Collection.f99_90_id)).filter(
-            sold_filter, Collection.f05_42_goal_price <= Collection.f05_40_cost_price
-        ).scalar() or 0
-        
         "byProfitLoss": [
-            {"type": "profit", "label": "盈利", "count": profit_count},
-            {"type": "loss", "label": "亏损", "count": loss_count}
+            {"type": "profit", "label": "盈利", "count": db.query(func.count(Collection.f99_90_id)).filter(
+                sold_filter, Collection.f05_42_goal_price > Collection.f05_40_cost_price
+            ).scalar() or 0},
+            {"type": "loss", "label": "亏损", "count": db.query(func.count(Collection.f99_90_id)).filter(
+                sold_filter, Collection.f05_42_goal_price <= Collection.f05_40_cost_price
+            ).scalar() or 0}
         ],
         "totalCost": cost_result,
         "totalTarget": target_result,