diff --git a/db_logic/medicament.py b/db_logic/medicament.py
index e7a75ca..45c9468 100644
--- a/db_logic/medicament.py
+++ b/db_logic/medicament.py
@@ -387,7 +387,7 @@ class BllMedicament(Repository):
                 client_code=entityClient.client_code,
                 variety_id=entityDrug.variety_id,
                 medicament_id=entityDrug.medicament_id,
-                price=entityDrug.price,
+                price=float(entityDrug.price) if entityDrug.price else 0,
                 use_quantity=float(lastRemain) - float(entityDrug.remain if entityDrug.remain else 0),
                 record_type=DrugRecordType.Return,
                 record_remain=float(entityDrug.remain),
@@ -397,6 +397,13 @@ class BllMedicament(Repository):
                 create_user_name=entityUser.real_name,
 
             )
+            # 液体用量数据保存
+            medicament_variety_obj = BllMedicamentVariety().findEntity(
+                EntityMedicamentVariety.variety_id == entityDrug.variety_id)
+            if medicament_variety_obj.net_weight_unit == 'ml' and medicament_variety_obj.density:
+                use_volume = (float(lastRemain) - float(
+                    entityDrug.remain if entityDrug.remain else 0)) / medicament_variety_obj.density
+                entityDrugRecord.use_volume = use_volume
             self.session.add(entityDrugRecord)
         entityVariety = BllMedicamentVariety().findEntity(entityDrug.variety_id)
         if(entityDrug.remain != 0):