LawFirm/AbstractLawFirmFileImpliment/Implements/ShopStorage.cs

@@ -94,12 +94,9 @@ namespace AbstractLawFirmFileImplement.Implements
 
 			var shopDocuments = source.Shops.SelectMany(shop => shop.ShopDocuments.Where(c => c.Value.Item1.Id == document.Id));
 
-			int countStore = 0;
+            int countStore = shopDocuments.Sum(it => it.Value.Item2);
 
-			foreach (var it in shopDocuments)
-				countStore += it.Value.Item2;
-
-			if (count > countStore)
+            if (count > countStore)
 				return false;
 
 			foreach (var shop in source.Shops)