public function down() 	{ 		Schema::table('orders', function (Blueprint $table) { 			$table->float('total_price')->change(); 			$table->float('shipping_price')->nullable()->change(); 			$table->float('total_discounts')->nullable()->change(); 			$table->float('tax_total')->nullable()->change(); 			$table->float('final_price')->change(); 			$table->float('total_price_minus_discounts')->change(); 		}); 	}