Symfony Query Builder: How to count rows AFTER group by?

I have a query like this:

$qb = $this->createQueryBuilder('c')            ->leftJoin('c.orders', 'o')            ->innerJoin('c.club', 'cb')            ->addselect('AVG(o.totalPrice) AS AverageValue')            ->groupBy('c.id');        $qb->setMaxResults($limit)->setFirstResult($offset);

This pulls customers from the database, and calculates their average order value.

I need to make the list of customers paginated, but the counting query i have below counts the rows BEFORE the group by, giving me an inaccurate number of results to build the pagination:

$qb = $this->createQueryBuilder('c')            ->select('COUNT(c.id) AS TotalCustomers')            ->leftJoin('c.orders','o')            ->innerJoin('c.club','cb')            ->groupBy('c.id')            ->setMaxResults(1);

I believe this needs a sub query to actually count the rows after the group by has happened but i'm not sure how to make the sub query with symfony query builder.