diff --git a/PrecastConcretePlant/PrecastConcretePlantFileImplement/ShopStorage.cs b/PrecastConcretePlant/PrecastConcretePlantFileImplement/ShopStorage.cs
index 0cba134..45d6baf 100644
--- a/PrecastConcretePlant/PrecastConcretePlantFileImplement/ShopStorage.cs
+++ b/PrecastConcretePlant/PrecastConcretePlantFileImplement/ShopStorage.cs
@@ -85,7 +85,7 @@ namespace PrecastConcretePlantFileImplement
                 .Select(shop => shop.Reinforceds
                     .FirstOrDefault(x => x.Key == reinforced.Id).Value.Item2)
                 .Sum();
-            if (resultCount >= needCount)
+            if (resultCount < needCount)
             {
                 return false;
             }