Allocation scaling up and not scaling down when using Autoscaler and Nomad as apm

Nomad
1

Allocation is being scaled to 3 although there is enough resource, as well as it’s not scaling down, and the 3 allocations are always running when using nomad apm. I am attaching my job template can anyone correct me if I’m wrong anywhere.

job "scaling-example" {
  datacenters = ["aws-us-east-1"]
  region      = "aws-us-east-1"
  namespace   = "devops"
  type        = "service"
  priority    = 50

  constraint {
        attribute = "$${node.class}"
        value     = "general"
    }

    group "nomad-scaling" {
        count = 1
        scaling {
            min     = 1
            max     = 3
            enabled = true

            policy {
                evaluation_interval = "5s"
                cooldown            = "1m"

                check "cpu_allocated_percentage" {
                    source       = "nomad-apm"
                    query        = "avg_cpu"
                    query_window = "1m"
                    strategy "target-value" {
                        target = 50
                    }
                }

                check "memory_allocated_percentage" {
                    source       = "nomad-apm"
                    query        = "avg_memory"
                    query_window = "1m"
                    strategy "target-value" {
                        target = 50
                    }
                }
            }
        }
        restart {
        attempts = 3
        interval = "5m"
        delay = "30s"
        mode = "fail"
        }
        volume "ca-certificates" {
        type      = "host"
        read_only = true
        source    = "ca-certificates"
        }
        network {
        mode = "bridge"
        port "http" { to = 80 }
        }

        task "scaling-test" {
            driver = "docker"
            user   =  "root"
            volume_mount {
                volume      = "ca-certificates"
                destination = "/etc/ssl/certs"
            }

            config {
                image     = "nginx:latest"
            }
            service {
                name = "nomad-dynamic-scaling"
                port = "http"
                check {
                    name     = "alive"
                    type     = "http"
                    path     = "/"
                    interval = "60s"
                    timeout  = "5s"

                    check_restart {
                    limit           = 5
                    grace           = "90s"
                    ignore_warnings = false
                    }
                }
            }
            resources {
                cpu    = 100
                memory = 100
            }
        }
    }
}