"aggregations" : {
    "level1" : {
      "terms" : {
        "field" : "country",
        "size" : 0,
      },
      "aggregations" : {
        "orderAggs" : {
          "terms" : {
            "field" : "orderId",
            "size" : 0,
          },
          "aggregations" : {
            "totalQty" : {
              "max" : {
                "field" : "targetQty"
              }
            },
            "timeFilterAggs" : {
              "filter" : {
                "range" : {
                  "timeTaken" : {
                    "from" : null,
                    "to" : 5000,
                    "include_lower" : true,
                    "include_upper" : true
                  }
                }
              },
              "aggregations" : {
                "processed" : {
                  "max" : {
                    "field" : "processedQty"
                  }
                }
              }
            }
          }
        },
        "sumProcessed" : {
          "sum_bucket" : {
            "buckets_path" : [ "order>timeFilter>processed" ]
          }
        },
        "sumTargeted" : {
          "sum_bucket" : {
            "buckets_path" : [ "order>totalQty" ]
          }
        },
        "processedRatio" : {
          "bucket_script" : {
            "script" : {
              "inline" : "(target != 0 && target != null)? processed / target * 100:0"
            },
            "buckets_path" : {
              "processed" : "sumProcessed",
              "target" : "sumTargeted"
            }
          }
        }
      }
    }
  }

"aggregations": {
    "level1": {
      "doc_count_error_upper_bound": 0,
      "sum_other_doc_count": 0,
      "buckets": [
        {
          "key": "IN",
          "doc_count": 4,
          "orderAggs": {
            "doc_count_error_upper_bound": 0,
            "sum_other_doc_count": 0,
            "buckets": [
              {
                "key": "ID_1",
                "doc_count": 2,
                "totalQty": {
                  "value": 2
                },
                "timeFilterAggs": {
                  "doc_count": 2,
                  "processed": {
                    "value": 2
                  }
                }
              },
              {
                "key": "ID_2",
                "doc_count": 2,
                "totalQty": {
                  "value": 2
                },
                "timeFilterAggs": {
                  "doc_count": 2,
                  "processed": {
                    "value": 2
                  }
                }
              }
            ]
          },
          "sumProcessed": {
            "value": 4
          },
          "sumTargeted": {
            "value": 4
          },
          "processedRatio": {
            "value": 100.0
          }
        }]
    }
}

"aggregations": {
    "level1": {
      "doc_count_error_upper_bound": 0,
      "sum_other_doc_count": 0,
      "buckets": [
        {
          "key": "IN",
          "doc_count": 77,
          "orderAggs": {
            //I don't need to include this as part of result, but I need this data for calculation
          },
          "sumProcessed": {
            "value": 4
          },
          "sumTargeted": {
            "value": 4
          },
          "processedRatio": {
            "value": 100.0
          }
        }]
    }
}