diff --git a/yuthon_report/models/receivable_flow_report.py b/yuthon_report/models/receivable_flow_report.py
index 14d911f75..baf5d4304 100644
--- a/yuthon_report/models/receivable_flow_report.py
+++ b/yuthon_report/models/receivable_flow_report.py
@@ -133,7 +133,7 @@ class ReceivableFlowReport(models.Model):
             
             if billing_period:
                 try:
-                    # 兼容中文"到"和英文"~"两种分隔符
+                    # 兼容中文“到”和英文“~”两种分隔符
                     if ' 到 ' in billing_period:
                         date_parts = billing_period.split(' 到 ')
                     elif ' ~ ' in billing_period:
@@ -148,55 +148,11 @@ class ReceivableFlowReport(models.Model):
                         days_diff = (end_date - start_date).days + 1
                         billing_period = f"{days_diff} {start_date_str} ~ {end_date_str}"
                 except Exception:
-                    if rec.due_date:
-                        start_date = rec.due_date.replace(day=1)
-                        if rec.payout_date:
-                            end_date = rec.payout_date
-                        else:
-                            if date_end:
-                                end_date_obj = datetime.datetime.fromisoformat(date_end).date()
-                                if end_date_obj.month == 12:
-                                    last_day = datetime.date(end_date_obj.year, 12, 31)
-                                else:
-                                    last_day = datetime.date(end_date_obj.year, end_date_obj.month + 1, 1) - datetime.timedelta(days=1)
-                                end_date = last_day
-                            else:
-                                today = datetime.date.today()
-                                if today.month == 12:
-                                    last_day = datetime.date(today.year, 12, 31)
-                                else:
-                                    last_day = datetime.date(today.year, today.month + 1, 1) - datetime.timedelta(days=1)
-                                end_date = last_day
-                        
-                        days_diff = (end_date - start_date).days + 1
-                        billing_period = f"{days_diff} {start_date.strftime('%Y-%m-%d')} ~ {end_date.strftime('%Y-%m-%d')}"
-            else:
-                if rec.due_date:
-                    start_date = rec.due_date.replace(day=1)
-                    if rec.payout_date:
-                        end_date = rec.payout_date
-                    else:
-                        if date_end:
-                            end_date_obj = datetime.datetime.fromisoformat(date_end).date()
-                            if end_date_obj.month == 12:
-                                last_day = datetime.date(end_date_obj.year, 12, 31)
-                            else:
-                                last_day = datetime.date(end_date_obj.year, end_date_obj.month + 1, 1) - datetime.timedelta(days=1)
-                            end_date = last_day
-                        else:
-                            today = datetime.date.today()
-                            if today.month == 12:
-                                last_day = datetime.date(today.year, 12, 31)
-                            else:
-                                last_day = datetime.date(today.year, today.month + 1, 1) - datetime.timedelta(days=1)
-                            end_date = last_day
-                    
-                    days_diff = (end_date - start_date).days + 1
-                    billing_period = f"{days_diff} {start_date.strftime('%Y-%m-%d')} ~ {end_date.strftime('%Y-%m-%d')}"
+                    billing_period = rec.charging_range or ""
+                    days_diff = 0
             
             # 计算违约金金额
-            penalty_amount = days_diff * per_day
-            penalty_amount = penalty_amount or rec.penalty or rec.original_amount or 0.0
+            penalty_amount = round(days_diff * per_day, 2)
             
             # 获取违约金收款信息（从预加载字典取）
             wz_list = wizard_map.get(rec.id, [])