KEDA HPA metrics value for Queue Triggered Azure Function

I have a KEDA enabled Queue Triggered Azure Function running in a Kubernetes cluster. When I describe the HPA created by KEDA, I am unable to understand the value metrics.

In the following image, what does "7309m" represents? I came to the conclusion that "1" is the queueLength parameter I supplied in the ScaledObject.yaml file.

The official documentation shows an example which is based upon the percentage of the resources utilized by the system as follows:

ScaledObject.yaml file

apiVersion: v1
kind: Secret
metadata:
  name: queue-connection-secret
data:
  connection-string: ####
---
apiVersion: keda.sh/v1alpha1
kind: TriggerAuthentication
metadata:
  name: azure-queue-auth
spec:
  secretTargetRef:
  - parameter: connection
    name: queue-connection-secret
    key: connection-string
---
apiVersion: keda.sh/v1alpha1
kind: ScaledObject
metadata:
  name: queuetrigfuncscaledobject
spec:
  scaleTargetRef:
    name: queuetrigfuncdeployment
  minReplicaCount: 0
  maxReplicaCount: 120
  pollingInterval: 1
  cooldownPeriod: 900

  triggers:
  - type: azure-queue
    metadata:
      queueName: k8s-poc-queue
      queueLength: "1"
    authenticationRef:
        name: azure-queue-auth