diff --git a/assets/uploads/vouchers/6a10906017df7-Captura de pantalla 2026-05-22 122011.png b/assets/uploads/vouchers/6a10906017df7-Captura de pantalla 2026-05-22 122011.png
new file mode 100644
index 00000000..5ddc6ad5
Binary files /dev/null and b/assets/uploads/vouchers/6a10906017df7-Captura de pantalla 2026-05-22 122011.png differ
diff --git a/assets/uploads/vouchers/6a1094a7e9cfd-Captura de pantalla 2026-05-22 123755.png b/assets/uploads/vouchers/6a1094a7e9cfd-Captura de pantalla 2026-05-22 123755.png
new file mode 100644
index 00000000..d6458ac9
Binary files /dev/null and b/assets/uploads/vouchers/6a1094a7e9cfd-Captura de pantalla 2026-05-22 123755.png differ
diff --git a/assets/uploads/vouchers/6a1094f1b044c-Captura de pantalla 2026-05-22 123910.png b/assets/uploads/vouchers/6a1094f1b044c-Captura de pantalla 2026-05-22 123910.png
new file mode 100644
index 00000000..b0837369
Binary files /dev/null and b/assets/uploads/vouchers/6a1094f1b044c-Captura de pantalla 2026-05-22 123910.png differ
diff --git a/assets/uploads/vouchers/6a1097e65cdf1-2231.png b/assets/uploads/vouchers/6a1097e65cdf1-2231.png
new file mode 100644
index 00000000..da3e7f5d
Binary files /dev/null and b/assets/uploads/vouchers/6a1097e65cdf1-2231.png differ
diff --git a/configuracion_rentabilidad.php b/configuracion_rentabilidad.php
index ee75a4ac..24e4724b 100644
--- a/configuracion_rentabilidad.php
+++ b/configuracion_rentabilidad.php
@@ -39,7 +39,7 @@ if ($_SERVER['REQUEST_METHOD'] === 'POST') {
     $message = '<div class="alert alert-success">Configuración actualizada correctamente.</div>';
 }
 
-$stmt = $db->query("SELECT * FROM configuracion_costos");
+$stmt = $db->query("SELECT clave, valor FROM configuracion_costos");
 $config = $stmt->fetchAll(PDO::FETCH_KEY_PAIR);
 
 $pageTitle = 'Configuración de Rentabilidad';