diff --git a/BBWYB.Server.Business/PurchaseOrder/PurchaseOrderBusiness.cs b/BBWYB.Server.Business/PurchaseOrder/PurchaseOrderBusiness.cs
index bdeef82..10e787c 100644
--- a/BBWYB.Server.Business/PurchaseOrder/PurchaseOrderBusiness.cs
+++ b/BBWYB.Server.Business/PurchaseOrder/PurchaseOrderBusiness.cs
@@ -521,10 +521,17 @@ namespace BBWYB.Server.Business
                         var skuId = cargoParamGroupsByScheme.FirstOrDefault().BelongSkuId;
                         var skuItemCount = orderSkus.FirstOrDefault(osku => osku.SkuId == skuId)?.ItemTotal ?? 0;
 
-                        var lastPurchasePriceCost = cargoParamGroupsByScheme.Sum(cargoParam => createdPurchaseOrderItemList.Where(x => x.SkuId == cargoParam.SkuId)
-                                                                                                                           .Select(x => x.Price * (cargoParam.PurchaseRatio ?? 1))
-                                                                                                                           .DefaultIfEmpty(0M)
-                                                                                                                           .First());
+                        //var lastPurchasePriceCost = cargoParamGroupsByScheme.Sum(cargoParam => createdPurchaseOrderItemList.Where(x => x.SkuId == cargoParam.SkuId)
+                        //                                                                                                   .Select(x => x.Price * (cargoParam.PurchaseRatio ?? 1))
+                        //                                                                                                   .DefaultIfEmpty(0M)
+                        //                                                                                                   .First());
+
+                        var lastPurchasePriceCost = cargoParamGroupsByScheme.Sum(cargoParam =>
+                        {
+                            return (createdPurchaseOrderItemList.FirstOrDefault(x => x.SkuId == cargoParam.SkuId)?.Price ?? 0) * (cargoParam.PurchaseRatio ?? 1);
+                        });
+
+
                         var purchasedAmount = insertOrderCostDetails.Where(ocd => ocd.SkuId == skuId).Sum(ocd => ocd.SkuAmount);
                         var update = fsql.Update<PurchaseScheme>(schemeId).Set(ps => ps.LastPurchaseTime, DateTime.Now)
                                                                           .Set(ps => ps.LastPurchasePriceCost, lastPurchasePriceCost)