>>> [i.department_staff for i in Shop.objects.annotate(
                departments_count=Count('departments__sphere', distinct=True),
                department_staff=Sum('departments__staff_amount'),
                items_count=Count('departments__items'),
                max_price=Max('departments__items__price')
            ).order_by('pk')]
>>> [1450, 1000, 4000]
>>> [i.department_staff for i in Shop.objects.annotate(
                departments_count=Count('departments__sphere', distinct=True),
                department_staff=Sum('departments__staff_amount')
            ).order_by('pk')]
>>> [650, 400, 1600]