Trying to change the a sql query in laravel 9

I am trying to convert the following sql query:

SELECT state , county , COUNT(1), (COUNT(1)*200) AS score FROM lawyer_subscribers LEFT JOIN lawyer_subscriber_case_types ON lawyer_subscribers.id = lawyer_subscriber_case_types.subscriber_id WHERE casetype = 'Family Law' GROUP BY state , county ORDER BY state , county;

I have tried it in laravel 9 as following:

public function subscriber_group_data(Request $request) {
        $returnArray = array();
        $validator = Validator::make($request->all(), [
            'case_type'     => 'required|array',
            'status'        => 'required',
            'score'         => 'required'
        ]);

        if ($validator->fails()) {
            return response()->json(['error' => $validator->errors()], 401);
        }

        try {
            $score = explode(" ",$request->score);
            $status = ($request->status == 'Active') ? 1 : 0;
            $subscriberrecords = LawyerSubscriber::leftJoin('lawyer_subscriber_case_types', 'lawyer_subscribers.id', '=', 'lawyer_subscriber_case_types.subscriber_id')
            ->select('state','county')
            ->selectRaw('COUNT(1)')
            ->selectRaw('(COUNT(1)*200) AS score')
            ->whereIn('casetype',$request->case_type)
            ->where('status',$status)
            ->groupBy('state', 'county')
            ->orderBy('state')
            ->orderBy('county')
            ->get();

            $returnArray['status'] = "Success";
            $returnArray['data'] = $subscriberrecords;
            return response()->json($returnArray, 200);
        }
        catch( Exception $e ) {
            echo 'Exception Message: ' .$e->getMessage();
        }
    }

The query is returning the result.

Now I want the score calculated as (COUNT(1)*200) must be within the range of the score parameter in the json.

The json being sent is :

{
    "case_type" : ["Family Law"],
    "status" : "Active",
    "score"  : "200 To 999"
}

Now if I want the response to be returned if the score calculated lies between the range provided such as 200 and 999. Kindly suggest what changes to be done in the query?