SQL Query error

SELECT COUNT$($DISTINCT C$.$customerID$)$ AS Total$\_$customers

FROM$($

SELECT COUNT$($DISTINCT C$.$customerID$)$ AS returning$\_$customers

FROM $"$JVS$\_$Schema".Customer AS C

JOIN $"$JVS$\_$Schema".Rental AS R ON R$.$CustomerID$=$C$.$CustomerID

JOIN $"$JVS$\_$Schema".Order AS O ON R$.$OrderID$=$O$.$OrderID

GROUP BY C$.$customerID HAVING COUNT$($O$.$OrderID$)>1$

$)$AS SUBQUERY

SELECT $($returning$\_$customers $/$ total$\_$customers$)*100$ AS retention$\_$rate;