diff --git a/common/forms/LedgerForm.php b/common/forms/LedgerForm.php
index 97b1246..aa18bae 100644
--- a/common/forms/LedgerForm.php
+++ b/common/forms/LedgerForm.php
@@ -195,7 +195,7 @@ class LedgerForm extends BaseModel
                                     $model = new MonthlyPaymentModel();
                                     $model->store_id = $productOrder->store_id;
                                     $model->order_id = $productOrder->id;
-                                    $model->amount = $totalBuyPrice;
+                                    $model->amount = $productOrder->market_price;
                                     $model->created_at = $time;
                                     $model->save();