How to divied two different data metrics in visualize (graph)

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hello i am using latest version of opensearch 2.16
i have two different data in my metrics index (ss4o_metrics-otel-2024.09.10) data-1
name:kube_node_cpu_usage and data-2 name:kube_node_allocatable_cpu
i want to divided this value

{
  "_index": "ss4o_metrics-otel-2024.09.10",
  "_id": "5MGe2pEB9SGP9NxGt84p",
  "_version": 1,
  "_score": null,
  "_source": {
    "unit": "{cpu}",
    "exemplars": [],
    "kind": "GAUGE",
    "name": "kube_node_allocatable_cpu",
    "flags": 0,
    "description": "Amount of cpu allocatable on the node",
    "startTime": "1970-01-01T00:00:00Z",
    "attributes": {
      "instrumentationScope.name": "github.com/open-telemetry/opentelemetry-collector-contrib/receiver/k8sclusterreceiver",
      "metric.attributes.attributenaman": 123,
      "instrumentationScope.version": "0.108.1",
      "resource": {
        "attributes": {
          "kts_node_name": "minikube",
          "kts_node_uid": "3dc0cb11-7e7b-45c9-9c1a-c26b91e4f7ce"
        }
      }
    },
    "time": "2024-09-10T06:28:35.344719812Z",
    "serviceName": null,
    "value": 8,
    "schemaUrl": "https://opentelemetry.io/schemas/1.18.0"
  },
  "fields": {
    "startTime": [
      "1970-01-01T00:00:00.000Z"
    ],
    "time": [
      "2024-09-10T06:28:35.344Z"
    ]
  },
  "highlight": {
    "name": [
      "@opensearch-dashboards-highlighted-field@kube_node_allocatable_cpu@/opensearch-dashboards-highlighted-field@"
    ]
  },
  "sort": [
    1725949715344
  ]
}

data-2 below

{
  "_index": "ss4o_metrics-otel-2024.09.10",
  "_id": "Usmo2pEB9SGP9NxGjkP4",
  "_version": 1,
  "_score": null,
  "_source": {
    "unit": "{cpu}",
    "exemplars": [],
    "kind": "GAUGE",
    "name": "kube_node_cpu_usage",
    "flags": 0,
    "description": "Total CPU usage (sum of all cores per second) averaged over the sample window",
    "startTime": "2024-09-10T04:42:03Z",
    "attributes": {
      "instrumentationScope.name": "github.com/open-telemetry/opentelemetry-collector-contrib/receiver/kubeletstatsreceiver",
      "metric.attributes.attributenaman": 123,
      "instrumentationScope.version": "0.108.1",
      "resource": {
        "attributes": {
          "kts_node_name": "minikube"
        }
      }
    },
    "time": "2024-09-10T06:39:25.402917953Z",
    "serviceName": null,
    "value": 0.850103888,
    "schemaUrl": ""
  },
  "fields": {
    "startTime": [
      "2024-09-10T04:42:03.000Z"
    ],
    "time": [
      "2024-09-10T06:39:25.402Z"
    ]
  },
  "highlight": {
    "name": [
      "@opensearch-dashboards-highlighted-field@kube_node_cpu_usage@/opensearch-dashboards-highlighted-field@"
    ]
  },
  "sort": [
    1725950365402
  ]
}