diff --git a/app/Http/Controllers/Site/ReportController.php b/app/Http/Controllers/Site/ReportController.php
index ac4cd0b..fe925a6 100644
--- a/app/Http/Controllers/Site/ReportController.php
+++ b/app/Http/Controllers/Site/ReportController.php
@@ -124,6 +124,7 @@ class ReportController extends Controller
     protected function appendUpPrices(array $payload): array
     {
         $payload['up'] = $this->buildUpDownPrices();
+        $payload['last_historical'] = app(ProductDisplayPriceService::class)->resolveHistoricalBasePrice();
         app(ProductDisplayPriceService::class)->cacheLivePricePayload($payload);
 
         return $payload;
diff --git a/app/Services/ProductDisplayPriceService.php b/app/Services/ProductDisplayPriceService.php
index 1502409..e93f4d2 100644
--- a/app/Services/ProductDisplayPriceService.php
+++ b/app/Services/ProductDisplayPriceService.php
@@ -65,34 +65,25 @@ class ProductDisplayPriceService
 
     private function applyAppPrice(Product $product, int $basePrice): void
     {
-        $storedPrice = (int) ($product->price ?? 0);
-        $useLast = Product::hasUseLastPriceIfZeroColumn()
-            && ($product->use_last_price_if_zero ?? false);
-
-        if ($basePrice <= 0) {
-            if ($useLast && $storedPrice > 0) {
-                return;
-            }
-
-            $product->setAttribute('price', 0);
-            if (Schema::hasColumn($product->getTable(), 'price_profit')) {
-                $product->setAttribute('price_profit', 0);
-            }
-
-            return;
-        }
-
+        $useLast = $this->productUsesLastPriceIfZero($product);
         $offset = Product::hasPriceOffsetColumn()
             ? (float) ($product->price_offset_percent ?? 0)
             : 0.0;
 
-        $computed = ProductPriceService::adjustedTotal($basePrice, 0, $offset);
-        if ($computed <= 0) {
-            if ($useLast && $storedPrice > 0) {
-                return;
-            }
+        if ($basePrice <= 0) {
+            $this->applyPriceOrFallback($product, 0, $useLast);
 
-            $product->setAttribute('price', 0);
+            return;
+        }
+
+        $computed = ProductPriceService::adjustedTotal($basePrice, 0, $offset);
+        $this->applyPriceOrFallback($product, $computed, $useLast);
+    }
+
+    private function applyPriceOrFallback(Product $product, int $computed, bool $useLast): void
+    {
+        if ($computed > 0) {
+            $product->setAttribute('price', $computed);
             if (Schema::hasColumn($product->getTable(), 'price_profit')) {
                 $product->setAttribute('price_profit', 0);
             }
@@ -100,12 +91,71 @@ class ProductDisplayPriceService
             return;
         }
 
-        $product->setAttribute('price', $computed);
+        if ($useLast) {
+            $fallback = $this->resolveLastPriceFallback($product);
+            if ($fallback > 0) {
+                $product->setAttribute('price', $fallback);
+                if (Schema::hasColumn($product->getTable(), 'price_profit')) {
+                    $product->setAttribute('price_profit', 0);
+                }
+
+                return;
+            }
+        }
+
+        $product->setAttribute('price', 0);
         if (Schema::hasColumn($product->getTable(), 'price_profit')) {
             $product->setAttribute('price_profit', 0);
         }
     }
 
+    private function productUsesLastPriceIfZero(Product $product): bool
+    {
+        return Product::hasUseLastPriceIfZeroColumn()
+            && ($product->use_last_price_if_zero ?? false);
+    }
+
+    /**
+     * آخرین قیمت ذخیره‌شده: اول products.price، بعد جدول prices (تاریخچه مظنه).
+     */
+    public function resolveLastPriceFallback(Product $product): int
+    {
+        $stored = (int) ($product->price ?? 0);
+        if ($stored > 0) {
+            return $stored;
+        }
+
+        $storedProfit = (int) ($product->price_profit ?? 0);
+        if ($storedProfit > 0) {
+            return $stored + $storedProfit;
+        }
+
+        $historical = $this->resolveHistoricalBasePrice();
+        if ($historical <= 0) {
+            return 0;
+        }
+
+        if ($this->usesAppPrice($product) || $product->reading_method) {
+            $offset = Product::hasPriceOffsetColumn()
+                ? (float) ($product->price_offset_percent ?? 0)
+                : 0.0;
+
+            return ProductPriceService::adjustedTotal($historical, 0, $offset);
+        }
+
+        return $historical;
+    }
+
+    public function resolveHistoricalBasePrice(): int
+    {
+        $last = Price::orderByDesc('id')->first();
+        if (!$last || (float) $last->price <= 0) {
+            return 0;
+        }
+
+        return (int) $last->price;
+    }
+
     /** @param array<int, array<string, mixed>> $feed */
     private function applyReferenceFeedPrice(Product $product, array $feed, ZaarboxPriceService $zaarbox): void
     {
@@ -116,12 +166,14 @@ class ProductDisplayPriceService
 
         $computed = $zaarbox->computeAdjustedProductPrice($product, $row);
         if ($computed <= 0) {
-            if (
-                Product::hasUseLastPriceIfZeroColumn()
-                && ($product->use_last_price_if_zero ?? false)
-                && (int) ($product->price ?? 0) > 0
-            ) {
-                return;
+            if ($this->productUsesLastPriceIfZero($product)) {
+                $fallback = $this->resolveLastPriceFallback($product);
+                if ($fallback > 0) {
+                    $product->setAttribute('price', $fallback);
+                    if (Schema::hasColumn($product->getTable(), 'price_profit')) {
+                        $product->setAttribute('price_profit', 0);
+                    }
+                }
             }
 
             return;
diff --git a/app/Services/ProductPriceSyncService.php b/app/Services/ProductPriceSyncService.php
index 3d6abd6..dcf9d9e 100644
--- a/app/Services/ProductPriceSyncService.php
+++ b/app/Services/ProductPriceSyncService.php
@@ -3,6 +3,7 @@
 namespace App\Services;
 
 use App\Models\Product;
+use Illuminate\Support\Collection;
 use Illuminate\Support\Facades\Cache;
 use Illuminate\Support\Facades\Http;
 use Illuminate\Support\Facades\Log;
@@ -61,7 +62,7 @@ class ProductPriceSyncService
 
         $basePrice = $display->resolveAppBasePrice();
         if ($basePrice <= 0) {
-            return false;
+            return $this->restoreAppProductsFromHistorical($products);
         }
 
         $synced = false;
@@ -73,6 +74,30 @@ class ProductPriceSyncService
         return $synced;
     }
 
+    /** provider صفر ولی use_last_price_if_zero — بازیابی از جدول prices به products.price */
+    private function restoreAppProductsFromHistorical(Collection $products): bool
+    {
+        $historical = app(ProductDisplayPriceService::class)->resolveHistoricalBasePrice();
+        if ($historical <= 0) {
+            return false;
+        }
+
+        $synced = false;
+        foreach ($products as $product) {
+            if (!Product::hasUseLastPriceIfZeroColumn() || !($product->use_last_price_if_zero ?? false)) {
+                continue;
+            }
+            if ((int) ($product->price ?? 0) > 0) {
+                continue;
+            }
+
+            ProductPriceService::syncFromReference($product, $historical, 0);
+            $synced = true;
+        }
+
+        return $synced;
+    }
+
     /** فید قدیمی — reading_method به شکل name (سازگاری با پروژه‌های قدیمی) */
     private function syncFromLegacyFeed(bool $forceRefresh = false): bool
     {