diff --git a/app/Services/Admin/Manage/TransactionService.php b/app/Services/Admin/Manage/TransactionService.php
index 16c357c..074c5fa 100644
--- a/app/Services/Admin/Manage/TransactionService.php
+++ b/app/Services/Admin/Manage/TransactionService.php
@@ -96,7 +96,7 @@ public function getSummary(array $filters = []): array
         $query = Order::query()
             ->selectRaw('COUNT(*) as total_orders')
             ->selectRaw('COALESCE(SUM(subtotal), 0) as total_subtotal')
-            ->selectRaw('COALESCE(SUM(subtotal) - SUM(COALESCE(nego_price, subtotal)), 0) as total_discount')
+            ->selectRaw('COALESCE(SUM(discount) + SUM(COALESCE(nego_price, 0)), 0) as total_discount')
             ->selectRaw('COALESCE(SUM(total_amount), 0) as total_amount')
             ->selectRaw('COALESCE(SUM(cogs), 0) as total_cogs')
             ->when($filters['status'] ?? null, fn ($q, $status) => $q->where('status', $status))
@@ -158,7 +158,7 @@ public function store(array $data): Order
 
             $discount = (int) ($data['discount'] ?? 0);
             $negoPrice = ! empty($data['nego_price']) ? (int) $data['nego_price'] : null;
-            $totalAmount = $subtotal - $discount + ($negoPrice ?? 0);
+            $totalAmount = $subtotal - $discount - ($negoPrice ?? 0);
 
             $order = Order::create([
                 'created_by_id' => auth()->id(),
@@ -225,7 +225,7 @@ public function update(Order $order, array $data): Order
 
             $discount = (int) ($data['discount'] ?? 0);
             $negoPrice = ! empty($data['nego_price']) ? (int) $data['nego_price'] : null;
-            $totalAmount = $subtotal - $discount + ($negoPrice ?? 0);
+            $totalAmount = $subtotal - $discount - ($negoPrice ?? 0);
 
             foreach ($itemRows as &$row) {
                 $row['order_id'] = $order->id;
diff --git a/resources/js/pages/admin/manage/transaction/create.tsx b/resources/js/pages/admin/manage/transaction/create.tsx
index 36fb670..beb4c1c 100644
--- a/resources/js/pages/admin/manage/transaction/create.tsx
+++ b/resources/js/pages/admin/manage/transaction/create.tsx
@@ -225,7 +225,7 @@ export default function TransactionCreate({
         0,
     );
 
-    const total = subtotal - discount + (negoPrice ?? 0);
+    const total = subtotal - discount - (negoPrice ?? 0);
 
     const updateQuantity = useCallback((variantId: number, value: number) => {
         setQuantities((prev) => ({
@@ -814,7 +814,7 @@ export default function TransactionCreate({
                                                     placeholder="0"
                                                 />
                                                 <FieldDescription>
-                                                    Jika diisi, harga nego menjadi total akhir.
+                                                    Jumlah potongan harga yang dinego customer.
                                                 </FieldDescription>
                                                 <InputError
                                                     message={errors.nego_price}
diff --git a/resources/js/pages/admin/manage/transaction/edit.tsx b/resources/js/pages/admin/manage/transaction/edit.tsx
index e8410a2..74e7aeb 100644
--- a/resources/js/pages/admin/manage/transaction/edit.tsx
+++ b/resources/js/pages/admin/manage/transaction/edit.tsx
@@ -195,7 +195,7 @@ export default function TransactionEdit({
         0,
     );
 
-    const total = subtotal - discount + (negoPrice ?? 0);
+    const total = subtotal - discount - (negoPrice ?? 0);
 
     const updateQuantity = useCallback((variantId: number, value: number) => {
         setQuantities((prev) => ({
@@ -793,7 +793,7 @@ export default function TransactionEdit({
                                                     placeholder="0"
                                                 />
                                                 <FieldDescription>
-                                                    Jika diisi, harga nego menjadi total akhir.
+                                                    Jumlah potongan harga yang dinego customer.
                                                 </FieldDescription>
                                                 <InputError
                                                     message={errors.nego_price}