diff --git a/app/models/project.py b/app/models/project.py
index d356d3e..903ea00 100644
--- a/app/models/project.py
+++ b/app/models/project.py
@@ -97,8 +97,8 @@ class Design(pydantic.BaseModel):
     type: str = Field(description='نوع پروژه در این فیلد قرار می گیرد')
     budget_id: int = Field(description='کد شناسایی دسته بودچه در این فیلد قرار می گیرد')
     budget: str = Field(description='دسته بودجه در این فیلد قرار می گیرد')
-    date_send: datetime.datetime = Field(description='تاریخ ابالغ/ارجاع')
-    letter: str = Field(description='شماره نامه')
+    date_send: Optional[datetime.datetime] = Field(description='تاریخ ابالغ/ارجاع')
+    letter: Optional[str] = Field(description='شماره نامه')
     land_area:Optional[str] = Field(description="مساحت زمین")
     building_infrastructure:Optional[int] = Field(description="زیربنای ساختمان")
     site_area:Optional[str] = Field(description="مساحت محوطه")
diff --git a/app/repositories/report.py b/app/repositories/report.py
index 6e9c55d..209f626 100644
--- a/app/repositories/report.py
+++ b/app/repositories/report.py
@@ -163,6 +163,7 @@ class ReportRepository():
         return report
 
     async def list_delay_donut(self, _select: str):
+        get_list = []
         _map = {'1': 'financial.total', '2': 'force_major.total', '3': 'technical.total', '4': 'extra_new_work',
                 '5': 'other'}
         report = await use_collection(TaskEnv.CLN_BILL_DELAY).aggregate([
@@ -170,7 +171,36 @@ class ReportRepository():
             {'$group': {"_id": '$project_id'}}
         ]).to_list(None)
         if report:
-            get_list = []
             for i in report:
                 get_list.append(i['_id'])
         return get_list
+
+    async def sum_delay_percent(self):
+        result = {}
+        result['less_than_20'] = []
+        result['bet_20_50']= []
+        result['bet_50_100'] = []
+        result['bet_100_200'] = []
+        result['upper_than_200'] = []
+        get_dict_project_id = {}
+        report = await use_collection(TaskEnv.CLN_BILL_DELAY).aggregate([
+            {'$group': {"_id": '$project_id', 'sum':{'$sum':'$total_day'}}}
+        ]).to_list(None)
+        get_list_project_id = [i['_id'] for i in report] if report else []
+        get_dict_project_id.update( {str(i['_id']):i for i in report} if report else [])
+        list_project = await use_collection(TaskEnv.CLN_PROJECT).find({"_id":{"$in":get_list_project_id}}).to_list(None)
+        if list_project:
+            for i in list_project:
+                if i['monitor']['detail']['first_time']:
+                    cal = (get_dict_project_id[str(i["_id"])]['sum']/i['monitor']['detail']['first_time'])*100
+                    if cal < 20 :
+                        result['less_than_20'].append(i)
+                    elif cal < 50:
+                        result['bet_20_50'].append(i)
+                    elif cal < 100:
+                        result['bet_50_100'].append(i)
+                    elif cal < 200:
+                        result['bet_100_200'].append(i)
+                    else:
+                        result['upper_than_200'].append(i)
+        return result
diff --git a/app/urls/report.py b/app/urls/report.py
index 2256771..81e6005 100644
--- a/app/urls/report.py
+++ b/app/urls/report.py
@@ -33,6 +33,11 @@ def exist_project_state():
 def delay_donut():
     pass
 
+@router.get('/donut/delay/percent', tags=_tag_base)
+@shrink(repo.sum_delay_percent)
+def sum_delay_percent():
+    pass
+
 @router.get('/donut/delay/{_select}', tags=_tag_base)
 @shrink(repo.list_delay_donut)
 def list_delay_donut(_select):